BuddyPress.org

Good Day,
I currently have BuddyPress Create Group Type and BuddyPress installed on my word press website. I use it such a way the administrators of each group do not necessarily have to edit a few of the settings because they are usually less tech savy. I would like to know is it possible to hide some of the settings on the front end in the management window such as settings, delete and forums.

Also I would like to know if it is possible to have the email information that is sent to person when they are rejected from a group to be changed? Because we find the you have been rejected message a bit harsh.