Press space on geometry graph to deselect all

[micheus]

Just like in the geometry window. It would be nice

you know that you can do almost that by clicking the RMB over any selected cube icon in the Geometry window. Don't you?

The process is click RMB - deselect every thing except that one - and then click LMB (deselect the one under the mouse pointer).

oh, that is the same for the other icons too.