#1273 Deselect all selections.

[Karoly Tarpataki]

I submitted this request a few years ago, but maybe my translation was bad, which is why I didn't get any feedback.
The editor interface has a button to select all, but there is no button to deselect all.
Currently, clicking on an empty area will deselect any selection, but this is difficult to do when you are in a zoomed-in edit, when you are working on close-up details.
There should be a solution for this.

Regards: Karoly