[Plugin: BuddyPress Activity Stream Bump to Top] Apply 'Bump to Top' feature to Favorite

Really cool Plugin! I have been searching for this functionality for some days.
I would like to apply Bump to Top but with Favorites. Actually when you click Favorite in something, and then go to your Favorites page, that favorite will have the date when the activity was created, not the date when the Favorite was made (which seems more logical to me). And if the activity is from some time ago it will appear on the bottom of Favorites page (although it was clicked a few seconds ago).

So my question is how could I change the functionality to Favorites instead of comments (or what way should I go). Thanks!

http://wordpress.org/extend/plugins/buddypress-activity-stream-bump-to-top/