Using this example of how it works, why Alice can't send transactions by herself, but instead her account gets locked? Why does she need Bob A to help her? What if she askes him to send 100 XEM, for instance, but instead he makes a mistake and send 1000 XEM, or he may even send it to someone else and even without Alice knowing about it. I mean wouldn't it be right to create a transaction all by herself and all Bob A, B, C have to do is just sign it?
Probably there should be some option in the menu for Alice, when she's converting her accound to multisig, which lets her cosignatories (none, any or individual ones) create outgoing transactions.
Kind regards.
Thats a good idea, but I think for now Alice would make one of her accounts a bob (to have some control herself.)