grouping as a preset

Hello,

could it be possible to create a preset for making and breaking a certain group ? I have several customers who regularly make a group eg dining room + kitchen.  This would be convenient if we could do this by means of a preset on the player itself.  Pressing the same preset again would then undo the group...

The group all feature is not applicable here as the customer does not want the bathroom upstairs or outside players going along in this group...