aghajoon

BuddyPress Avatar Hover let’s you add a pop box when hovering on the group/member avatars and gives you more information at a glance. 
if you install bp-cover plugin , bp avatar hover show cover of memeber/group

Buddypress Avatar Hover

BuddyPress  Avatar Hover let's you add a pop box when hovering on the group/member avatars and gives you more information at a glance.

Christian Wach

The BP Group Hierarchy Propagate plugin enables propagation of Activity Items up, down or up and down a hierarchy of BuddyPress Groups established by the BP Group Hierarchy plugin.
Note: this plugin has been developed and tested using BuddyPress 1.7+ and requires at least BP Group Hierarchy 1.4.2 if you want to switch the direction of propagation. The switch can be found on the BP Group Hierarchy settings page.
If you’re a developer, I’d welcome your contributions via the <a href="https://github.com/christianwach/bp-group-hierarchy-propagate" rel="nofollow ugc">Github repo</a>.

BP Group Hierarchy Propagate

Enables propagation of Activity Items through a hierarchy of BuddyPress Groups established by the BP Group Hierarchy plugin.

Buddypress Avatar Hover vs BP Group Hierarchy Propagate