Group/Team Assignment for Moodle 2.2

Hello everybody,

we're running Moodle 2.2.7+ (Build: 20130125), with no chance to move up to 2.3+ in the near future.

This said, I'm looking for a solution to use group/team assignements with Moodle 2.2. I just found out about the plugin "Team Assignment" (https://moodle.org/plugins/view.php?plugin=assignment_team), but this doesn't work as required. What we need is a way for the students to submit work in groups.

So I wonder if it is possible to patch the assignment used in Moodle 2.2.7 with this one: https://tracker.moodle.org/browse/MDL-27250

Or is there any other solution to get group assignments to work for Moodle 2.2?

Kind Regards