move paid subscription

From what i have read, i know i cannot merge my 2 avast accounts. My only option is to remove my devices from 1 account and move to the other. How do i move the paid subscription that goes with the device?

Simply connect the device(s) to the account you want to use.

Just to be sure. When i disconnect the device from 1 account and connect it to the other account the subscription automatically goes with it?

Yes.