How come the "Users" eSpace is locked?

How come the "Users" eSpace is locked? 
Hi Robert,

the Users eSpace is locked to simplify OutSystems upgrade process.
If you need a custom user provider, you need to develop a different eSpace.
You can ask for an open clone of the Users eSpace from OutSystems support. This process will help us keep track of relevant missing features.

Regards,
Lúcio