Once I add a multisig on one chain, I'd like to be able to use it to sign txs on any chain. Just like the Keplr extension lets me do this with a singlesig address, it would be amazing to be able to do it with a multisig without having to add the same address on each chain (some of which I may not have transacted on yet, and the app prevents you from adding multisigs to chains you have yet to transact on).