Interested in weather offline signing for 2/3 Multisig wallets is possible in this setup.
I have three computers Airgapped from the internet, and a USB. I imagine i can pull down some outputs for the ring signature creation from the blockchain from a online connected computer. I put these outputs onto a USB stick and transfer them to computer A, A conducts some offline signing process and builds the transaction, then i transfer on a USB A's signed TX + key image which B also signs. then that tx is taken to the online computer and submitted to the network.
So i have some questions, is the process described above possible? if so how would i get the data from the online computer into computer A, IE how does the process work is there some command in the CLI?