It is not possible to use activations from the same iLok license across different iLok accounts.
Each license is locked to the iLok account it is registered to.
It is important to remember that with Revoice Pro 4.3, VocAlign Ultra and VocAlign Project 5 you do not receive two licenses - you receive one license that allows two activations on two different locations such as computers, iLok USB keys and one iLok Cloud session per iLok account at the same time.
Please note, only one iLok Cloud session can be active in an iLok account at the same time.