[Plugin: BP Group Hierarchy] Creating 4th Privacy Option of Child Group

Hello, thanks for the great plugin!
I’m using the plugin to create Child Groups for use by “Committees” in our organization. I have two issues I need fixed for this to work for me.
1. The newly created Sub or Child Groups should not be visible in the Directory Listings on the /Groups page or other widget listings.
and
2. The Sub/Child Groups have no Menu link back up a level to its’ Parent Group.

Ok so here are the current options for group settings
This is a public group
Any site member can join this group.
This group will be listed in the groups directory and in search results.
Group content and activity will be visible to any site member.
This is a private group
Only users who request membership and are accepted can join the group.
This group will be listed in the groups directory and in search results.
Group content and activity will only be visible to members of the group.
This is a hidden group
Only users who are invited can join the group.
This group will not be listed in the groups directory or search results.
Group content and activity will only be visible to members of the group.
what I really want is that the child groups be set as Private but that the group will NOT be listed in the Groups Directory and Search Results.
hmm
I think what I need is a 4th Option
would go like this:
This is a private Sub Group (ie for committees)
Only users who request membership and are accepted can join the group.
This group will NOT be listed in the groups directory and in search results.
Group content and activity will only be visible to members of the group.
So again this is a 4th available option that would still leave the original 3 options the same for normal groups.

Whats the best way to do this and also add the link up a level to a Parent group for easier user Navigation.

Thanks!
Joseph

http://wordpress.org/extend/plugins/bp-group-hierarchy/