Assume, I received a bitcoin in a regular transaction: T1. But I need to make MULTISIG transaction. so there should be at least n out of m signatures in new transaction :T3, to redeem it.
Am I right that to turn T1 to a MULTI-SIG one I need to do as follows:
1- I create new transaction T2, that points to T1, and includes all the m public keys and it pays to myself.
2- When I want to pay someone, I create new transaction: T3 (pointing to T2) includes n signatures and pays to another party.