Maker Subscription and Multiple Users

Dear all,
I have a maker subscription. When I’ve read the features of the plan there are up to 20 devices supported and up to 10 users. I’ve chosen 10 devices, but my problem is how to distribute a project to specific user?
What does the user need (username in Blynk, etc…) to be able to operate the shared project?

I’ve read the following article but somehow I couldn’t implement it: User Management: How to add users and give them access to your devices

Is it maybe with the option when I go to my devices and then use the “transfer” function:

Thank you!