Force SelCrossing in Grasshopper when a group is in the background?

I guess the title says it all.

In Rhino, if you are zoomed in and have different geometry filling the viewport, if you still want to use a crossing window selection, you can press Alt while selecting to temporary activate “Drag selected objects only”.

It would be great to have something like that when you are zoomed in on the canvas and your background is a group, or is there something like that already and I never noticed?