I have a use case where funds should be transferred only if:
1 of (A1, A2) signs
3 of (B1, B2, B3, B4, B5) sign
This looks like a 2-of-2 multisig address, where each address is in turn a multisig one.
Does Multichain support this?
I looked into it for Bitcoin and it seems that the answer is no, so I'm guessing the answer is similar here.