No, that's not the case (yet ?). In v. 6, I have all rules allowed on the left and then it's a mix of Allowed / Files/ Application or Allowed / - / Applications or Allowed / - / -
All these don't appear in 1 group.
Also you don't remember this sequence long time after. It would me much easier to click on "Source applications" and then all would be sorted. I took some 5-10 minutes to search the crowed window for an app to remove.