Group calendar only for certain groups

Hi,

I am using the Buddypress Group Calendar plugin on a website I have for my classes/students. I find it very useful for creating homework and test 'events' for each of the classes (groups) I have. I also have groups for the whole year/grade groups which consist of a number of individual classes, and would prefer that that the event calendar did not show up for these groups.

Summary :- Is there any way to disable or hide the group calendar for certain groups?

Thanks

Mark