How to take out commenting on CB Activity with a certain asset

Hi Kyle,
I need to take out commenting on a certain asset (groupjive.group.x.custom.groupchat). I can do it in the groups without any problems but then it is sending out notifications which go to the activity directly /activity-hidden?action=activity&func=show&id=877 but in this case, it shows the commenting.

I now have two choices:
1) I change the link in the notifications to point directly towards the group where the stuff was posted (prefered but have tried everything and didnt succeed)
2) Get rid of the commenting on all activity with the above asset. I am guessing that I have to set up an AA for that with onBeforeDisplayStreamItem but I have no idea how to do that.

Could you please help?

Thanks!

Isn't "groupjive.group.x.custom.groupchat" already a custom auto action for adding the stream? You should be able to turn off commenting on that stream there. Alternative is whatever notification system action you're using add a condition against the asset so it's ignored.