--- a/pallets/nft/src/benchmarking.rs
+++ b/pallets/nft/src/benchmarking.rs
@@ -7,35 +7,10 @@
 use nft_data_structs::*;
 use core::convert::TryInto;
 use sp_runtime::DispatchError;
+use pallet_common::benchmarking::{create_data, create_u16_data};
 
 const SEED: u32 = 1;
-
-fn create_data(size: usize) -> Vec<u8> {
-	(0..size).map(|v| (v & 0xff) as u8).collect()
-}
-fn create_u16_data(size: usize) -> Vec<u16> {
-	(0..size).map(|v| (v & 0xffff) as u16).collect()
-}
-
-fn default_nft_data() -> CreateItemData {
-	CreateItemData::NFT(CreateNftData {
-		const_data: create_data(CUSTOM_DATA_LIMIT as usize).try_into().unwrap(),
-		variable_data: create_data(CUSTOM_DATA_LIMIT as usize).try_into().unwrap(),
-	})
-}
 
-fn default_fungible_data() -> CreateItemData {
-	CreateItemData::Fungible(CreateFungibleData { value: 1000 })
-}
-
-fn default_re_fungible_data() -> CreateItemData {
-	CreateItemData::ReFungible(CreateReFungibleData {
-		const_data: create_data(CUSTOM_DATA_LIMIT as usize).try_into().unwrap(),
-		variable_data: create_data(CUSTOM_DATA_LIMIT as usize).try_into().unwrap(),
-		pieces: 1000,
-	})
-}
-
 fn create_collection_helper<T: Config>(
 	owner: T::AccountId,
 	mode: CollectionMode,
@@ -55,20 +30,10 @@
 		token_prefix,
 		mode,
 	)?;
-	Ok(CreatedCollectionCount::get())
+	Ok(<pallet_common::CreatedCollectionCount<T>>::get())
 }
 fn create_nft_collection<T: Config>(owner: T::AccountId) -> Result<CollectionId, DispatchError> {
 	create_collection_helper::<T>(owner, CollectionMode::NFT)
-}
-fn create_fungible_collection<T: Config>(
-	owner: T::AccountId,
-) -> Result<CollectionId, DispatchError> {
-	create_collection_helper::<T>(owner, CollectionMode::Fungible(0))
-}
-fn create_refungible_collection<T: Config>(
-	owner: T::AccountId,
-) -> Result<CollectionId, DispatchError> {
-	create_collection_helper::<T>(owner, CollectionMode::ReFungible)
 }
 
 benchmarks! {
@@ -82,7 +47,7 @@
 		T::Currency::deposit_creating(&caller, T::CollectionCreationPrice::get());
 	}: _(RawOrigin::Signed(caller.clone()), col_name.clone(), col_desc.clone(), token_prefix.clone(), mode)
 	verify {
-		assert_eq!(<Pallet<T>>::collection_id(2).unwrap().owner, caller);
+		assert_eq!(<pallet_common::CollectionById<T>>::get(CollectionId(1)).unwrap().owner, caller);
 	}
 
 	destroy_collection {
@@ -129,7 +94,7 @@
 		let caller: T::AccountId = account("caller", 0, SEED);
 		let collection = create_nft_collection::<T>(caller.clone())?;
 		let new_admin: T::AccountId = account("admin", 0, SEED);
-		<Pallet<T>>::add_collection_admin(RawOrigin::Signed(caller.clone()).into(), 2, T::CrossAccountId::from_sub(new_admin.clone()))?;
+		<Pallet<T>>::add_collection_admin(RawOrigin::Signed(caller.clone()).into(), collection, T::CrossAccountId::from_sub(new_admin.clone()))?;
 	}: _(RawOrigin::Signed(caller.clone()), collection, T::CrossAccountId::from_sub(new_admin))
 
 	set_collection_sponsor {
@@ -140,152 +105,21 @@
 	confirm_sponsorship {
 		let caller: T::AccountId = account("caller", 0, SEED);
 		let collection = create_nft_collection::<T>(caller.clone())?;
-		<Pallet<T>>::set_collection_sponsor(RawOrigin::Signed(caller.clone()).into(), 2, caller.clone())?;
+		<Pallet<T>>::set_collection_sponsor(RawOrigin::Signed(caller.clone()).into(), collection, caller.clone())?;
 	}: _(RawOrigin::Signed(caller.clone()), collection)
 
 	remove_collection_sponsor {
 		let caller: T::AccountId = account("caller", 0, SEED);
 		let collection = create_nft_collection::<T>(caller.clone())?;
-		<Pallet<T>>::set_collection_sponsor(RawOrigin::Signed(caller.clone()).into(), 2, caller.clone())?;
-		<Pallet<T>>::confirm_sponsorship(RawOrigin::Signed(caller.clone()).into(), 2)?;
+		<Pallet<T>>::set_collection_sponsor(RawOrigin::Signed(caller.clone()).into(), collection, caller.clone())?;
+		<Pallet<T>>::confirm_sponsorship(RawOrigin::Signed(caller.clone()).into(), collection)?;
 	}: _(RawOrigin::Signed(caller.clone()), collection)
-
-	// nft item
-	create_item_nft {
-		let b in 0..(CUSTOM_DATA_LIMIT * 2);
-
-		let caller: T::AccountId = account("caller", 0, SEED);
-		let collection = create_nft_collection::<T>(caller.clone())?;
-		let data = CreateItemData::NFT(CreateNftData {
-			const_data: create_data(b.min(CUSTOM_DATA_LIMIT) as usize).try_into().unwrap(),
-			variable_data: create_data(b.saturating_sub(CUSTOM_DATA_LIMIT) as usize).try_into().unwrap(),
-		});
-	}: create_item(RawOrigin::Signed(caller.clone()), collection, T::CrossAccountId::from_sub(caller.clone()), data)
-
-	create_multiple_items_nft {
-		// TODO: Take item data size into account. As create_item_nft bench shows, this parameter has no effect on execution time,
-		// but it may if we increase CUSTOM_DATA_LIMIT
-		let b in 1..1000;
-
-		let caller: T::AccountId = account("caller", 0, SEED);
-		let collection = create_nft_collection::<T>(caller.clone())?;
-		let data = (0..b).map(|_| default_nft_data()).collect();
-	}: create_multiple_items(RawOrigin::Signed(caller.clone()), collection, T::CrossAccountId::from_sub(caller.clone()), data)
 
-	// fungible item
-	create_item_fungible {
-		let caller: T::AccountId = account("caller", 0, SEED);
-		let collection = create_fungible_collection::<T>(caller.clone())?;
-		let data = CreateItemData::Fungible(CreateFungibleData {
-			value: 1000,
-		});
-	}: create_item(RawOrigin::Signed(caller.clone()), collection, T::CrossAccountId::from_sub(caller.clone()), data)
-
-	create_multiple_items_fungible {
-		let b in 1..1000;
-
-		let caller: T::AccountId = account("caller", 0, SEED);
-		let collection = create_fungible_collection::<T>(caller.clone())?;
-		let data = (0..b).map(|_| default_fungible_data()).collect();
-	}: create_multiple_items(RawOrigin::Signed(caller.clone()), collection, T::CrossAccountId::from_sub(caller.clone()), data)
-
-	// refungible item
-	create_item_refungible {
-		let b in 0..(CUSTOM_DATA_LIMIT * 2);
-
-		let caller: T::AccountId = account("caller", 0, SEED);
-		let collection = create_refungible_collection::<T>(caller.clone())?;
-		let data = CreateItemData::ReFungible(CreateReFungibleData {
-			const_data: create_data(b.min(CUSTOM_DATA_LIMIT) as usize).try_into().unwrap(),
-			variable_data: create_data(b.saturating_sub(CUSTOM_DATA_LIMIT) as usize).try_into().unwrap(),
-			pieces: 1000,
-		});
-	}: create_item(RawOrigin::Signed(caller.clone()), collection, T::CrossAccountId::from_sub(caller.clone()), data)
-
-	create_multiple_items_refungible {
-		// TODO: Take item data size into account. As create_item_nft bench shows, this parameter has no effect on execution time,
-		// but it may if we increase CUSTOM_DATA_LIMIT
-		let b in 1..1000;
-
-		let caller: T::AccountId = account("caller", 0, SEED);
-		let collection = create_refungible_collection::<T>(caller.clone())?;
-		let data = (0..b).map(|_| default_re_fungible_data()).collect();
-	}: create_multiple_items(RawOrigin::Signed(caller.clone()), collection, T::CrossAccountId::from_sub(caller.clone()), data)
-
-	burn_item_nft {
-		let caller: T::AccountId = account("caller", 0, SEED);
-		let collection = create_nft_collection::<T>(caller.clone())?;
-		let data = default_nft_data();
-		<Pallet<T>>::create_item(RawOrigin::Signed(caller.clone()).into(), collection, T::CrossAccountId::from_sub(caller.clone()), data)?;
-	}: burn_item(RawOrigin::Signed(caller.clone()), collection, 1, 1)
-
-	transfer_nft {
-		let caller: T::AccountId = account("caller", 0, SEED);
-		let collection = create_nft_collection::<T>(caller.clone())?;
-		let recipient: T::AccountId = account("recipient", 0, SEED);
-		let data = default_nft_data();
-		<Pallet<T>>::create_item(RawOrigin::Signed(caller.clone()).into(), collection, T::CrossAccountId::from_sub(caller.clone()), data)?;
-	}: transfer(RawOrigin::Signed(caller.clone()), T::CrossAccountId::from_sub(recipient.clone()), collection, 1, 1)
-
-	transfer_fungible {
-		let caller: T::AccountId = account("caller", 0, SEED);
-		let collection = create_fungible_collection::<T>(caller.clone())?;
-		let recipient: T::AccountId = account("recipient", 0, SEED);
-		let data = default_fungible_data();
-		<Pallet<T>>::create_item(RawOrigin::Signed(caller.clone()).into(), collection, T::CrossAccountId::from_sub(caller.clone()), data)?;
-	}: transfer(RawOrigin::Signed(caller.clone()), T::CrossAccountId::from_sub(recipient.clone()), collection, 1, 1)
-
-	transfer_refungible {
-		let caller: T::AccountId = account("caller", 0, SEED);
-		let collection = create_refungible_collection::<T>(caller.clone())?;
-		let recipient: T::AccountId = account("recipient", 0, SEED);
-		let data = default_re_fungible_data();
-		<Pallet<T>>::create_item(RawOrigin::Signed(caller.clone()).into(), collection, T::CrossAccountId::from_sub(caller.clone()), data)?;
-	}: transfer(RawOrigin::Signed(caller.clone()), T::CrossAccountId::from_sub(recipient.clone()), collection, 1, 1)
-
 	set_transfers_enabled_flag {
 		let caller: T::AccountId = account("caller", 0, SEED);
 		let collection = create_nft_collection::<T>(caller.clone())?;
 	}: _(RawOrigin::Signed(caller.clone()), collection, false)
-
-	approve_nft {
-		let caller: T::AccountId = account("caller", 0, SEED);
-		let collection = create_nft_collection::<T>(caller.clone())?;
-		let recipient: T::AccountId = account("recipient", 0, SEED);
-		let data = default_nft_data();
-		<Pallet<T>>::create_item(RawOrigin::Signed(caller.clone()).into(), 2, T::CrossAccountId::from_sub(caller.clone()), data)?;
-	}: approve(RawOrigin::Signed(caller.clone()), T::CrossAccountId::from_sub(recipient.clone()), collection, 1, 1)
 
-	// Nft
-	transfer_from_nft {
-		let caller: T::AccountId = account("caller", 0, SEED);
-		let collection = create_nft_collection::<T>(caller.clone())?;
-		let recipient: T::AccountId = account("recipient", 0, SEED);
-		let data = default_nft_data();
-		<Pallet<T>>::create_item(RawOrigin::Signed(caller.clone()).into(), 2, T::CrossAccountId::from_sub(caller.clone()), data)?;
-		<Pallet<T>>::approve(RawOrigin::Signed(caller.clone()).into(), T::CrossAccountId::from_sub(recipient.clone()), 2, 1, 1)?;
-	}: transfer_from(RawOrigin::Signed(caller.clone()), T::CrossAccountId::from_sub(caller.clone()), T::CrossAccountId::from_sub(recipient.clone()), 2, 1, 1)
-
-	// Fungible
-	transfer_from_fungible {
-		let caller: T::AccountId = account("caller", 0, SEED);
-		let collection = create_fungible_collection::<T>(caller.clone())?;
-		let recipient: T::AccountId = account("recipient", 0, SEED);
-		let data = default_fungible_data();
-		<Pallet<T>>::create_item(RawOrigin::Signed(caller.clone()).into(), 2, T::CrossAccountId::from_sub(caller.clone()), data)?;
-		<Pallet<T>>::approve(RawOrigin::Signed(caller.clone()).into(), T::CrossAccountId::from_sub(recipient.clone()), 2, 1, 1)?;
-	}: transfer_from(RawOrigin::Signed(caller.clone()), T::CrossAccountId::from_sub(caller.clone()), T::CrossAccountId::from_sub(recipient.clone()), 2, 1, 1)
-
-	// ReFungible
-	transfer_from_refungible {
-		let caller: T::AccountId = account("caller", 0, SEED);
-		let collection = create_refungible_collection::<T>(caller.clone())?;
-		let recipient: T::AccountId = account("recipient", 0, SEED);
-		let data = default_re_fungible_data();
-		<Pallet<T>>::create_item(RawOrigin::Signed(caller.clone()).into(), 2, T::CrossAccountId::from_sub(caller.clone()), data)?;
-		<Pallet<T>>::approve(RawOrigin::Signed(caller.clone()).into(), T::CrossAccountId::from_sub(recipient.clone()), 2, 1, 1)?;
-	}: transfer_from(RawOrigin::Signed(caller.clone()), T::CrossAccountId::from_sub(caller.clone()), T::CrossAccountId::from_sub(recipient.clone()), 2, 1, 1)
-
 	set_offchain_schema {
 		let b in 0..OFFCHAIN_SCHEMA_LIMIT;
 
@@ -308,29 +142,19 @@
 		let caller: T::AccountId = account("caller", 0, SEED);
 		let collection = create_nft_collection::<T>(caller.clone())?;
 		let data = create_data(b as usize);
-	}: set_variable_on_chain_schema(RawOrigin::Signed(caller.clone()), 2, data)
-
-	set_variable_meta_data_nft {
-		let b in 0..CUSTOM_DATA_LIMIT;
-
-		let caller: T::AccountId = account("caller", 0, SEED);
-		let collection = create_nft_collection::<T>(caller.clone())?;
-		let data = default_nft_data();
-		<Pallet<T>>::create_item(RawOrigin::Signed(caller.clone()).into(), 2, T::CrossAccountId::from_sub(caller.clone()), data)?;
-		let data = create_data(b as usize);
-	}: set_variable_meta_data(RawOrigin::Signed(caller.clone()), collection, 1, data)
+	}: set_variable_on_chain_schema(RawOrigin::Signed(caller.clone()), collection, data)
 
 	set_schema_version {
 		let caller: T::AccountId = account("caller", 0, SEED);
 		let collection = create_nft_collection::<T>(caller.clone())?;
-	}: set_schema_version(RawOrigin::Signed(caller.clone()), 2, SchemaVersion::Unique)
+	}: set_schema_version(RawOrigin::Signed(caller.clone()), collection, SchemaVersion::Unique)
 
 	set_collection_limits{
 		let caller: T::AccountId = account("caller", 0, SEED);
 		let collection = create_nft_collection::<T>(caller.clone())?;
 
 		let cl = CollectionLimits {
-			account_token_ownership_limit: 0,
+			account_token_ownership_limit: Some(0),
 			sponsored_data_size: 0,
 			token_limit: 1,
 			sponsor_transfer_timeout: 0,
@@ -338,5 +162,10 @@
 			owner_can_transfer: true,
 			sponsored_data_rate_limit: None,
 		};
-	}: set_collection_limits(RawOrigin::Signed(caller.clone()), 2, cl)
+	}: set_collection_limits(RawOrigin::Signed(caller.clone()), collection, cl)
+
+	set_meta_update_permission_flag {
+		let caller: T::AccountId = account("caller", 0, SEED);
+		let collection = create_nft_collection::<T>(caller.clone())?;
+	}: _(RawOrigin::Signed(caller.clone()), collection, MetaUpdatePermission::Admin)
 }
--- a/pallets/nft/src/lib.rs
+++ b/pallets/nft/src/lib.rs
@@ -100,38 +100,6 @@
 
 type SelfWeightOf<T> = <T as Config>::WeightInfo;
 
-trait WeightInfoHelpers: WeightInfo {
-	fn transfer() -> Weight {
-		Self::transfer_nft()
-			.max(Self::transfer_fungible())
-			.max(Self::transfer_refungible())
-	}
-	fn transfer_from() -> Weight {
-		Self::transfer_from_nft()
-			.max(Self::transfer_from_fungible())
-			.max(Self::transfer_from_refungible())
-	}
-	fn approve() -> Weight {
-		// TODO: refungible, fungible
-		Self::approve_nft()
-	}
-	fn set_variable_meta_data(data: u32) -> Weight {
-		// TODO: refungible
-		Self::set_variable_meta_data_nft(data)
-	}
-	fn create_item(data: u32) -> Weight {
-		Self::create_item_nft(data)
-			.max(Self::create_item_fungible())
-			.max(Self::create_item_refungible(data))
-	}
-	fn create_multiple_items(amount: u32) -> Weight {
-		Self::create_multiple_items_nft(amount)
-			.max(Self::create_multiple_items_fungible(amount))
-			.max(Self::create_multiple_items_refungible(amount))
-	}
-}
-impl<T: WeightInfo> WeightInfoHelpers for T {}
-
 // # Used definitions
 //
 // ## User control levels
@@ -754,7 +722,7 @@
 		/// * collection_id: ID of the collection.
 		///
 		/// * value: New flag value.
-		#[weight = <SelfWeightOf<T>>::set_variable_meta_data(0)]
+		#[weight = <SelfWeightOf<T>>::set_meta_update_permission_flag()]
 		#[transactional]
 		pub fn set_meta_update_permission_flag(origin, collection_id: CollectionId, value: MetaUpdatePermission) -> DispatchResult {
 			let sender = T::CrossAccountId::from_sub(ensure_signed(origin)?);
--- a/pallets/nft/src/weights.rs
+++ b/pallets/nft/src/weights.rs
@@ -2,8 +2,8 @@
 
 //! Autogenerated weights for pallet_nft
 //!
-//! THIS FILE WAS AUTO-GENERATED USING THE SUBSTRATE BENCHMARK CLI VERSION 3.0.0
-//! DATE: 2021-08-31, STEPS: `[50, ]`, REPEAT: 20, LOW RANGE: `[]`, HIGH RANGE: `[]`
+//! THIS FILE WAS AUTO-GENERATED USING THE SUBSTRATE BENCHMARK CLI VERSION 4.0.0-dev
+//! DATE: 2021-10-21, STEPS: `50`, REPEAT: 20, LOW RANGE: `[]`, HIGH RANGE: `[]`
 //! EXECUTION: None, WASM-EXECUTION: Compiled, CHAIN: None, DB CACHE: 128
 
 // Executed Command:
@@ -43,202 +43,141 @@
 	fn set_collection_sponsor() -> Weight;
 	fn confirm_sponsorship() -> Weight;
 	fn remove_collection_sponsor() -> Weight;
-	fn create_item_nft(b: u32, ) -> Weight;
-	fn create_multiple_items_nft(b: u32, ) -> Weight;
-	fn create_item_fungible() -> Weight;
-	fn create_multiple_items_fungible(b: u32, ) -> Weight;
-	fn create_item_refungible(b: u32, ) -> Weight;
-	fn create_multiple_items_refungible(b: u32, ) -> Weight;
-	fn burn_item_nft() -> Weight;
-	fn transfer_nft() -> Weight;
-	fn transfer_fungible() -> Weight;
-	fn transfer_refungible() -> Weight;
 	fn set_transfers_enabled_flag() -> Weight;
-	fn approve_nft() -> Weight;
-	fn transfer_from_nft() -> Weight;
-	fn transfer_from_fungible() -> Weight;
-	fn transfer_from_refungible() -> Weight;
 	fn set_offchain_schema(b: u32, ) -> Weight;
 	fn set_const_on_chain_schema(b: u32, ) -> Weight;
 	fn set_variable_on_chain_schema(b: u32, ) -> Weight;
-	fn set_variable_meta_data_nft(b: u32, ) -> Weight;
 	fn set_schema_version() -> Weight;
 	fn set_collection_limits() -> Weight;
+	fn set_meta_update_permission_flag() -> Weight;
 }
 
 /// Weights for pallet_nft using the Substrate node and recommended hardware.
 pub struct SubstrateWeight<T>(PhantomData<T>);
 impl<T: frame_system::Config> WeightInfo for SubstrateWeight<T> {
+	// Storage: Common CreatedCollectionCount (r:1 w:1)
+	// Storage: Common DestroyedCollectionCount (r:1 w:0)
+	// Storage: System Account (r:2 w:2)
+	// Storage: Common CollectionById (r:0 w:1)
 	fn create_collection() -> Weight {
-		(25_851_000 as Weight)
-			.saturating_add(T::DbWeight::get().reads(8 as Weight))
-			.saturating_add(T::DbWeight::get().writes(6 as Weight))
+		(23_803_000 as Weight)
+			.saturating_add(T::DbWeight::get().reads(4 as Weight))
+			.saturating_add(T::DbWeight::get().writes(4 as Weight))
 	}
+	// Storage: Common CollectionById (r:1 w:1)
+	// Storage: Common DestroyedCollectionCount (r:1 w:1)
+	// Storage: Nonfungible TokensMinted (r:0 w:1)
+	// Storage: Nonfungible TokensBurnt (r:0 w:1)
 	fn destroy_collection() -> Weight {
-		(28_737_000 as Weight)
+		(27_831_000 as Weight)
 			.saturating_add(T::DbWeight::get().reads(2 as Weight))
 			.saturating_add(T::DbWeight::get().writes(4 as Weight))
 	}
+	// Storage: Common CollectionById (r:1 w:0)
+	// Storage: Common Allowlist (r:0 w:1)
 	fn add_to_white_list() -> Weight {
-		(6_237_000 as Weight)
+		(6_629_000 as Weight)
 			.saturating_add(T::DbWeight::get().reads(1 as Weight))
 			.saturating_add(T::DbWeight::get().writes(1 as Weight))
 	}
+	// Storage: Common CollectionById (r:1 w:0)
+	// Storage: Common Allowlist (r:0 w:1)
 	fn remove_from_white_list() -> Weight {
-		(6_252_000 as Weight)
+		(6_596_000 as Weight)
 			.saturating_add(T::DbWeight::get().reads(1 as Weight))
 			.saturating_add(T::DbWeight::get().writes(1 as Weight))
 	}
+	// Storage: Common CollectionById (r:1 w:1)
 	fn set_public_access_mode() -> Weight {
-		(6_691_000 as Weight)
+		(6_338_000 as Weight)
 			.saturating_add(T::DbWeight::get().reads(1 as Weight))
 			.saturating_add(T::DbWeight::get().writes(1 as Weight))
 	}
+	// Storage: Common CollectionById (r:1 w:1)
 	fn set_mint_permission() -> Weight {
-		(6_630_000 as Weight)
+		(6_383_000 as Weight)
 			.saturating_add(T::DbWeight::get().reads(1 as Weight))
 			.saturating_add(T::DbWeight::get().writes(1 as Weight))
 	}
+	// Storage: Common CollectionById (r:1 w:1)
 	fn change_collection_owner() -> Weight {
-		(6_521_000 as Weight)
+		(6_493_000 as Weight)
 			.saturating_add(T::DbWeight::get().reads(1 as Weight))
 			.saturating_add(T::DbWeight::get().writes(1 as Weight))
 	}
+	// Storage: Common CollectionById (r:1 w:0)
+	// Storage: Common IsAdmin (r:0 w:1)
 	fn add_collection_admin() -> Weight {
-		(8_057_000 as Weight)
-			.saturating_add(T::DbWeight::get().reads(2 as Weight))
+		(6_850_000 as Weight)
+			.saturating_add(T::DbWeight::get().reads(1 as Weight))
 			.saturating_add(T::DbWeight::get().writes(1 as Weight))
 	}
+	// Storage: Common CollectionById (r:1 w:0)
+	// Storage: Common IsAdmin (r:0 w:1)
 	fn remove_collection_admin() -> Weight {
-		(8_307_000 as Weight)
-			.saturating_add(T::DbWeight::get().reads(2 as Weight))
+		(6_615_000 as Weight)
+			.saturating_add(T::DbWeight::get().reads(1 as Weight))
 			.saturating_add(T::DbWeight::get().writes(1 as Weight))
 	}
+	// Storage: Common CollectionById (r:1 w:1)
 	fn set_collection_sponsor() -> Weight {
-		(6_484_000 as Weight)
+		(6_430_000 as Weight)
 			.saturating_add(T::DbWeight::get().reads(1 as Weight))
 			.saturating_add(T::DbWeight::get().writes(1 as Weight))
 	}
+	// Storage: Common CollectionById (r:1 w:1)
 	fn confirm_sponsorship() -> Weight {
-		(6_530_000 as Weight)
+		(6_125_000 as Weight)
 			.saturating_add(T::DbWeight::get().reads(1 as Weight))
 			.saturating_add(T::DbWeight::get().writes(1 as Weight))
 	}
+	// Storage: Common CollectionById (r:1 w:1)
 	fn remove_collection_sponsor() -> Weight {
-		(6_733_000 as Weight)
+		(6_236_000 as Weight)
 			.saturating_add(T::DbWeight::get().reads(1 as Weight))
 			.saturating_add(T::DbWeight::get().writes(1 as Weight))
 	}
-	fn create_item_nft(_b: u32, ) -> Weight {
-		(167_909_000 as Weight)
-			.saturating_add(T::DbWeight::get().reads(11 as Weight))
-			.saturating_add(T::DbWeight::get().writes(8 as Weight))
-	}
-	fn create_multiple_items_nft(b: u32, ) -> Weight {
-		(336_830_000 as Weight)
-			// Standard Error: 42_000
-			.saturating_add((11_627_000 as Weight).saturating_mul(b as Weight))
-			.saturating_add(T::DbWeight::get().reads(11 as Weight))
-			.saturating_add(T::DbWeight::get().writes(7 as Weight))
-			.saturating_add(T::DbWeight::get().writes((1 as Weight).saturating_mul(b as Weight)))
-	}
-	fn create_item_fungible() -> Weight {
-		(24_123_000 as Weight)
-			.saturating_add(T::DbWeight::get().reads(9 as Weight))
-			.saturating_add(T::DbWeight::get().writes(4 as Weight))
-	}
-	fn create_multiple_items_fungible(b: u32, ) -> Weight {
-		(48_227_000 as Weight)
-			// Standard Error: 13_000
-			.saturating_add((2_918_000 as Weight).saturating_mul(b as Weight))
-			.saturating_add(T::DbWeight::get().reads(9 as Weight))
-			.saturating_add(T::DbWeight::get().writes(4 as Weight))
-	}
-	fn create_item_refungible(_b: u32, ) -> Weight {
-		(26_293_000 as Weight)
-			.saturating_add(T::DbWeight::get().reads(9 as Weight))
-			.saturating_add(T::DbWeight::get().writes(7 as Weight))
-	}
-	fn create_multiple_items_refungible(b: u32, ) -> Weight {
-		(0 as Weight)
-			// Standard Error: 16_000
-			.saturating_add((8_374_000 as Weight).saturating_mul(b as Weight))
-			.saturating_add(T::DbWeight::get().reads(9 as Weight))
-			.saturating_add(T::DbWeight::get().writes(6 as Weight))
-			.saturating_add(T::DbWeight::get().writes((1 as Weight).saturating_mul(b as Weight)))
-	}
-	fn burn_item_nft() -> Weight {
-		(32_237_000 as Weight)
-			.saturating_add(T::DbWeight::get().reads(9 as Weight))
-			.saturating_add(T::DbWeight::get().writes(7 as Weight))
-	}
-	fn transfer_nft() -> Weight {
-		(192_578_000 as Weight)
-			.saturating_add(T::DbWeight::get().reads(14 as Weight))
-			.saturating_add(T::DbWeight::get().writes(10 as Weight))
-	}
-	fn transfer_fungible() -> Weight {
-		(170_749_000 as Weight)
-			.saturating_add(T::DbWeight::get().reads(11 as Weight))
-			.saturating_add(T::DbWeight::get().writes(7 as Weight))
-	}
-	fn transfer_refungible() -> Weight {
-		(35_949_000 as Weight)
-			.saturating_add(T::DbWeight::get().reads(10 as Weight))
-			.saturating_add(T::DbWeight::get().writes(7 as Weight))
-	}
+	// Storage: Common CollectionById (r:1 w:1)
 	fn set_transfers_enabled_flag() -> Weight {
-		(6_376_000 as Weight)
+		(6_500_000 as Weight)
 			.saturating_add(T::DbWeight::get().reads(1 as Weight))
 			.saturating_add(T::DbWeight::get().writes(1 as Weight))
 	}
-	fn approve_nft() -> Weight {
-		(169_825_000 as Weight)
-			.saturating_add(T::DbWeight::get().reads(9 as Weight))
-			.saturating_add(T::DbWeight::get().writes(4 as Weight))
-	}
-	fn transfer_from_nft() -> Weight {
-		(197_912_000 as Weight)
-			.saturating_add(T::DbWeight::get().reads(15 as Weight))
-			.saturating_add(T::DbWeight::get().writes(11 as Weight))
-	}
-	fn transfer_from_fungible() -> Weight {
-		(183_789_000 as Weight)
-			.saturating_add(T::DbWeight::get().reads(12 as Weight))
-			.saturating_add(T::DbWeight::get().writes(8 as Weight))
-	}
-	fn transfer_from_refungible() -> Weight {
-		(37_149_000 as Weight)
-			.saturating_add(T::DbWeight::get().reads(11 as Weight))
-			.saturating_add(T::DbWeight::get().writes(8 as Weight))
-	}
+	// Storage: Common CollectionById (r:1 w:1)
 	fn set_offchain_schema(_b: u32, ) -> Weight {
-		(6_435_000 as Weight)
+		(6_538_000 as Weight)
 			.saturating_add(T::DbWeight::get().reads(1 as Weight))
 			.saturating_add(T::DbWeight::get().writes(1 as Weight))
 	}
+	// Storage: Common CollectionById (r:1 w:1)
 	fn set_const_on_chain_schema(_b: u32, ) -> Weight {
-		(6_646_000 as Weight)
+		(6_542_000 as Weight)
 			.saturating_add(T::DbWeight::get().reads(1 as Weight))
 			.saturating_add(T::DbWeight::get().writes(1 as Weight))
 	}
-	fn set_variable_on_chain_schema(_b: u32, ) -> Weight {
-		(6_542_000 as Weight)
+	// Storage: Common CollectionById (r:1 w:1)
+	fn set_variable_on_chain_schema(b: u32, ) -> Weight {
+		(6_092_000 as Weight)
+			// Standard Error: 0
+			.saturating_add((2_000 as Weight).saturating_mul(b as Weight))
 			.saturating_add(T::DbWeight::get().reads(1 as Weight))
 			.saturating_add(T::DbWeight::get().writes(1 as Weight))
 	}
-	fn set_variable_meta_data_nft(_b: u32, ) -> Weight {
-		(14_697_000 as Weight)
-			.saturating_add(T::DbWeight::get().reads(2 as Weight))
+	// Storage: Common CollectionById (r:1 w:1)
+	fn set_schema_version() -> Weight {
+		(6_470_000 as Weight)
+			.saturating_add(T::DbWeight::get().reads(1 as Weight))
 			.saturating_add(T::DbWeight::get().writes(1 as Weight))
 	}
-	fn set_schema_version() -> Weight {
-		(6_566_000 as Weight)
+	// Storage: Common CollectionById (r:1 w:1)
+	fn set_collection_limits() -> Weight {
+		(6_841_000 as Weight)
 			.saturating_add(T::DbWeight::get().reads(1 as Weight))
 			.saturating_add(T::DbWeight::get().writes(1 as Weight))
 	}
-	fn set_collection_limits() -> Weight {
-		(6_349_000 as Weight)
+	// Storage: Common CollectionById (r:1 w:1)
+	fn set_meta_update_permission_flag() -> Weight {
+		(6_278_000 as Weight)
 			.saturating_add(T::DbWeight::get().reads(1 as Weight))
 			.saturating_add(T::DbWeight::get().writes(1 as Weight))
 	}
@@ -246,178 +185,129 @@
 
 // For backwards compatibility and tests
 impl WeightInfo for () {
+	// Storage: Common CreatedCollectionCount (r:1 w:1)
+	// Storage: Common DestroyedCollectionCount (r:1 w:0)
+	// Storage: System Account (r:2 w:2)
+	// Storage: Common CollectionById (r:0 w:1)
 	fn create_collection() -> Weight {
-		(25_851_000 as Weight)
-			.saturating_add(RocksDbWeight::get().reads(8 as Weight))
-			.saturating_add(RocksDbWeight::get().writes(6 as Weight))
+		(23_803_000 as Weight)
+			.saturating_add(RocksDbWeight::get().reads(4 as Weight))
+			.saturating_add(RocksDbWeight::get().writes(4 as Weight))
 	}
+	// Storage: Common CollectionById (r:1 w:1)
+	// Storage: Common DestroyedCollectionCount (r:1 w:1)
+	// Storage: Nonfungible TokensMinted (r:0 w:1)
+	// Storage: Nonfungible TokensBurnt (r:0 w:1)
 	fn destroy_collection() -> Weight {
-		(28_737_000 as Weight)
+		(27_831_000 as Weight)
 			.saturating_add(RocksDbWeight::get().reads(2 as Weight))
 			.saturating_add(RocksDbWeight::get().writes(4 as Weight))
 	}
+	// Storage: Common CollectionById (r:1 w:0)
+	// Storage: Common Allowlist (r:0 w:1)
 	fn add_to_white_list() -> Weight {
-		(6_237_000 as Weight)
+		(6_629_000 as Weight)
 			.saturating_add(RocksDbWeight::get().reads(1 as Weight))
 			.saturating_add(RocksDbWeight::get().writes(1 as Weight))
 	}
+	// Storage: Common CollectionById (r:1 w:0)
+	// Storage: Common Allowlist (r:0 w:1)
 	fn remove_from_white_list() -> Weight {
-		(6_252_000 as Weight)
+		(6_596_000 as Weight)
 			.saturating_add(RocksDbWeight::get().reads(1 as Weight))
 			.saturating_add(RocksDbWeight::get().writes(1 as Weight))
 	}
+	// Storage: Common CollectionById (r:1 w:1)
 	fn set_public_access_mode() -> Weight {
-		(6_691_000 as Weight)
+		(6_338_000 as Weight)
 			.saturating_add(RocksDbWeight::get().reads(1 as Weight))
 			.saturating_add(RocksDbWeight::get().writes(1 as Weight))
 	}
+	// Storage: Common CollectionById (r:1 w:1)
 	fn set_mint_permission() -> Weight {
-		(6_630_000 as Weight)
+		(6_383_000 as Weight)
 			.saturating_add(RocksDbWeight::get().reads(1 as Weight))
 			.saturating_add(RocksDbWeight::get().writes(1 as Weight))
 	}
+	// Storage: Common CollectionById (r:1 w:1)
 	fn change_collection_owner() -> Weight {
-		(6_521_000 as Weight)
+		(6_493_000 as Weight)
 			.saturating_add(RocksDbWeight::get().reads(1 as Weight))
 			.saturating_add(RocksDbWeight::get().writes(1 as Weight))
 	}
+	// Storage: Common CollectionById (r:1 w:0)
+	// Storage: Common IsAdmin (r:0 w:1)
 	fn add_collection_admin() -> Weight {
-		(8_057_000 as Weight)
-			.saturating_add(RocksDbWeight::get().reads(2 as Weight))
+		(6_850_000 as Weight)
+			.saturating_add(RocksDbWeight::get().reads(1 as Weight))
 			.saturating_add(RocksDbWeight::get().writes(1 as Weight))
 	}
+	// Storage: Common CollectionById (r:1 w:0)
+	// Storage: Common IsAdmin (r:0 w:1)
 	fn remove_collection_admin() -> Weight {
-		(8_307_000 as Weight)
-			.saturating_add(RocksDbWeight::get().reads(2 as Weight))
+		(6_615_000 as Weight)
+			.saturating_add(RocksDbWeight::get().reads(1 as Weight))
 			.saturating_add(RocksDbWeight::get().writes(1 as Weight))
 	}
+	// Storage: Common CollectionById (r:1 w:1)
 	fn set_collection_sponsor() -> Weight {
-		(6_484_000 as Weight)
+		(6_430_000 as Weight)
 			.saturating_add(RocksDbWeight::get().reads(1 as Weight))
 			.saturating_add(RocksDbWeight::get().writes(1 as Weight))
 	}
+	// Storage: Common CollectionById (r:1 w:1)
 	fn confirm_sponsorship() -> Weight {
-		(6_530_000 as Weight)
+		(6_125_000 as Weight)
 			.saturating_add(RocksDbWeight::get().reads(1 as Weight))
 			.saturating_add(RocksDbWeight::get().writes(1 as Weight))
 	}
+	// Storage: Common CollectionById (r:1 w:1)
 	fn remove_collection_sponsor() -> Weight {
-		(6_733_000 as Weight)
+		(6_236_000 as Weight)
 			.saturating_add(RocksDbWeight::get().reads(1 as Weight))
 			.saturating_add(RocksDbWeight::get().writes(1 as Weight))
 	}
-	fn create_item_nft(b: u32, ) -> Weight {
-		(167_180_000 as Weight)
-			// Standard Error: 1_000
-			.saturating_add((10_000 as Weight).saturating_mul(b as Weight))
-			.saturating_add(RocksDbWeight::get().reads(11 as Weight))
-			.saturating_add(RocksDbWeight::get().writes(8 as Weight))
-	}
-	fn create_multiple_items_nft(b: u32, ) -> Weight {
-		(336_830_000 as Weight)
-			// Standard Error: 42_000
-			.saturating_add((11_627_000 as Weight).saturating_mul(b as Weight))
-			.saturating_add(RocksDbWeight::get().reads(11 as Weight))
-			.saturating_add(RocksDbWeight::get().writes(7 as Weight))
-			.saturating_add(RocksDbWeight::get().writes((1 as Weight).saturating_mul(b as Weight)))
-	}
-	fn create_item_fungible() -> Weight {
-		(24_123_000 as Weight)
-			.saturating_add(RocksDbWeight::get().reads(9 as Weight))
-			.saturating_add(RocksDbWeight::get().writes(4 as Weight))
-	}
-	fn create_multiple_items_fungible(b: u32, ) -> Weight {
-		(13_217_000 as Weight)
-			// Standard Error: 4_000
-			.saturating_add((2_971_000 as Weight).saturating_mul(b as Weight))
-			.saturating_add(RocksDbWeight::get().reads(9 as Weight))
-			.saturating_add(RocksDbWeight::get().writes(4 as Weight))
-	}
-	fn create_item_refungible(_b: u32, ) -> Weight {
-		(26_293_000 as Weight)
-			.saturating_add(RocksDbWeight::get().reads(9 as Weight))
-			.saturating_add(RocksDbWeight::get().writes(7 as Weight))
-	}
-	fn create_multiple_items_refungible(b: u32, ) -> Weight {
-		(0 as Weight)
-			// Standard Error: 16_000
-			.saturating_add((8_374_000 as Weight).saturating_mul(b as Weight))
-			.saturating_add(RocksDbWeight::get().reads(9 as Weight))
-			.saturating_add(RocksDbWeight::get().writes(6 as Weight))
-			.saturating_add(RocksDbWeight::get().writes((1 as Weight).saturating_mul(b as Weight)))
-	}
-	fn burn_item_nft() -> Weight {
-		(32_237_000 as Weight)
-			.saturating_add(RocksDbWeight::get().reads(9 as Weight))
-			.saturating_add(RocksDbWeight::get().writes(7 as Weight))
-	}
-	fn transfer_nft() -> Weight {
-		(192_578_000 as Weight)
-			.saturating_add(RocksDbWeight::get().reads(14 as Weight))
-			.saturating_add(RocksDbWeight::get().writes(10 as Weight))
-	}
-	fn transfer_fungible() -> Weight {
-		(170_749_000 as Weight)
-			.saturating_add(RocksDbWeight::get().reads(11 as Weight))
-			.saturating_add(RocksDbWeight::get().writes(7 as Weight))
-	}
-	fn transfer_refungible() -> Weight {
-		(35_949_000 as Weight)
-			.saturating_add(RocksDbWeight::get().reads(10 as Weight))
-			.saturating_add(RocksDbWeight::get().writes(7 as Weight))
-	}
+	// Storage: Common CollectionById (r:1 w:1)
 	fn set_transfers_enabled_flag() -> Weight {
-		(6_376_000 as Weight)
+		(6_500_000 as Weight)
 			.saturating_add(RocksDbWeight::get().reads(1 as Weight))
 			.saturating_add(RocksDbWeight::get().writes(1 as Weight))
 	}
-	fn approve_nft() -> Weight {
-		(169_825_000 as Weight)
-			.saturating_add(RocksDbWeight::get().reads(9 as Weight))
-			.saturating_add(RocksDbWeight::get().writes(4 as Weight))
-	}
-	fn transfer_from_nft() -> Weight {
-		(197_912_000 as Weight)
-			.saturating_add(RocksDbWeight::get().reads(15 as Weight))
-			.saturating_add(RocksDbWeight::get().writes(11 as Weight))
-	}
-	fn transfer_from_fungible() -> Weight {
-		(183_789_000 as Weight)
-			.saturating_add(RocksDbWeight::get().reads(12 as Weight))
-			.saturating_add(RocksDbWeight::get().writes(8 as Weight))
-	}
-	fn transfer_from_refungible() -> Weight {
-		(37_149_000 as Weight)
-			.saturating_add(RocksDbWeight::get().reads(11 as Weight))
-			.saturating_add(RocksDbWeight::get().writes(8 as Weight))
-	}
+	// Storage: Common CollectionById (r:1 w:1)
 	fn set_offchain_schema(_b: u32, ) -> Weight {
-		(6_435_000 as Weight)
+		(6_538_000 as Weight)
 			.saturating_add(RocksDbWeight::get().reads(1 as Weight))
 			.saturating_add(RocksDbWeight::get().writes(1 as Weight))
 	}
+	// Storage: Common CollectionById (r:1 w:1)
 	fn set_const_on_chain_schema(_b: u32, ) -> Weight {
-		(6_646_000 as Weight)
+		(6_542_000 as Weight)
 			.saturating_add(RocksDbWeight::get().reads(1 as Weight))
 			.saturating_add(RocksDbWeight::get().writes(1 as Weight))
 	}
-	fn set_variable_on_chain_schema(_b: u32, ) -> Weight {
-		(6_542_000 as Weight)
+	// Storage: Common CollectionById (r:1 w:1)
+	fn set_variable_on_chain_schema(b: u32, ) -> Weight {
+		(6_092_000 as Weight)
+			// Standard Error: 0
+			.saturating_add((2_000 as Weight).saturating_mul(b as Weight))
 			.saturating_add(RocksDbWeight::get().reads(1 as Weight))
 			.saturating_add(RocksDbWeight::get().writes(1 as Weight))
 	}
-	fn set_variable_meta_data_nft(_b: u32, ) -> Weight {
-		(14_697_000 as Weight)
-			.saturating_add(RocksDbWeight::get().reads(2 as Weight))
+	// Storage: Common CollectionById (r:1 w:1)
+	fn set_schema_version() -> Weight {
+		(6_470_000 as Weight)
+			.saturating_add(RocksDbWeight::get().reads(1 as Weight))
 			.saturating_add(RocksDbWeight::get().writes(1 as Weight))
 	}
-	fn set_schema_version() -> Weight {
-		(6_566_000 as Weight)
+	// Storage: Common CollectionById (r:1 w:1)
+	fn set_collection_limits() -> Weight {
+		(6_841_000 as Weight)
 			.saturating_add(RocksDbWeight::get().reads(1 as Weight))
 			.saturating_add(RocksDbWeight::get().writes(1 as Weight))
 	}
-	fn set_collection_limits() -> Weight {
-		(6_349_000 as Weight)
+	// Storage: Common CollectionById (r:1 w:1)
+	fn set_meta_update_permission_flag() -> Weight {
+		(6_278_000 as Weight)
 			.saturating_add(RocksDbWeight::get().reads(1 as Weight))
 			.saturating_add(RocksDbWeight::get().writes(1 as Weight))
 	}