Uipath Studio Named User License

Dear Team,

Kindly let us know about UiPath Studio (Named Used) License Query.

For Example we have 4 Studio Named User License

And we send 5 email invitation from Orchestrator to Named User.

Question#1 How many user are connected at the same time?

Question#2 If all 4 users are connected at the same time and 5th user try to connect should he connect or not?

Question#3 If One user is connected and 3 users are not connected, then in this case other 3 users try to connect so it should be connect or not?
What about the 5th user did he connect or not?