@ivanb thank you very much for sharing your idea and for describing the use case!
I understand it would be a very convenient option for you, but I’ve got to note that this request is quite custom and sounds like a complex one, thus it’s unlikely we’ll be able to release it in the near future 
I think an option to share access to your account will be released much sooner, and perhaps it will do the trick for you. You can vote for it here: Add team members to your account.
Anyways, thanks a lot for sharing your thoughts, your help and suggestions are crucial for us!