It would be great for Casper network to define a standard interface (like cep47 or cep78 for NFTs), equivalent to etheruem's ERC-1155 standard.
Of course there is a implementation of this contract on casper (I guess it's related to hackathon) but that implementation does not meet all the needs that ERC1155 asks for.
Also there is no way to view these tokens, neither in casper-signer nor in cspr.live, It would be grate to first, define that standard on casper network for contracts, and then create the front-end part on cspr.live so users could view their ERC1155 NFTs alongside with other standards in their account.