If all you want is the ability to add a plugin to multiple tracks at once its been possible for a long time.
1. Select all the tracks you want to insert the plugin on.
2. Right click on the fx bin on any one of the tracks in the track or the track inspector.
3. Navigate to the effect you want to add to all the tracks from the tracks "Insert audio FX" menu
4. While holding down the control key click the effect you wish to add
It will automatically add this plugin to all selected tracks using quick grouping.
You can also do this with buses...