Hide options to the users

Hello! After at all, sorry because my english isn’t so good.

We are deploying an Openfire server with Spark clients on a Active Directory environment.

It’s working fine now, but we want to hide/forbid some options to the users, like add users and making their own groups.

Is it possible at any way?

I’m waiting for your help and thanks!!

Not without building a custom version of spark.

Thanks again for your help!