Remove 'Leave'-Button in Site Finder

[vampire]

I need to remove the "Leave"-Button for one specific Site in the Site-Finder.

Can somebody give me a hint, please?

Background: I need to disable the option of leaving one specific site. I already disabeled the the "Leave Site" menu entry.
Is there a direct way to disable the option of leaving a specific site?

[mikeh]

I would re-think the problem and instead of disabling a function of the UI, create a group with the users you want added to the site as members. Then add that group to the site membership. You'll have to remove current site members before adding the group.

Thanks,
Mike