Add assets to multiple tokens with single call

[bobo-k2]

I am using a script for RMRK collection building process. The script mints all tokens to a single account and at one point it is calls addAssetToToken, for each token in the collection. I think there should be a way to have a single call to add assets to multiple tokens, because otherwise building a RMRK collection can take a very long time.
E.g. in my case I need to build 20000 tokens collection. If I batch addAssetToToken calls and execute batches, it will took me more than 16 hours to build the collection. Currently, it is possible to add max. 4 addAssetToToken calls to a batch because of weight (proofSize) limitation.