Is it possible to use ERC1404 with SKALE IMA?

For restricted tokens like ERC1404, you will still be able to use the Interchain Messaging Feature since the contracts will be mirrored between Ethereum and the SKALE Network. You will have full control over when those tokens can be transferred. This is made possible because, at the core, SKALE allows you to deploy any smart contract written in solidity. In this use case you will be able to deploy your ERC1404 (or similar) token smart contract for managing your restricted tokens, and through Interchain Messaging have it linked to your ERC1404 smart contract that lives on Ethereum. On the SKALE side you will see the token as a clone of what exists on Ethereum via the Interchain Messaging Feature.