Hi there, @Wijsneus_Media 
I am happy to say that this functionality is available starting with the Pro plan.
You can create a project, then add the widgets you’d like to share to that project.
After that, you can share access to this project with your clients. They’ll have access to the widgets from the shared project only.
If you’d like to provide access to the whole account, it’s all possible. Check this post for more details - [MAJOR UPDATE]: Introducing the INVITE MEMBERS feature in your Dashboard! ⚡
If any further questions come up, I’ll be happy to help 