When we are in EXPO it can be handy to zoom in to a desktop SCALE to better see its apps.
Right now the left-click and right-click do the same thing. Right-clicking could do the switch between
Another intuitive way would be to use CTRL + MouseWheel
CTRL + WheelUP = Zoom in = Expo to Scale
CTRL + WheelDOWN = Zoom out = Scale to Expo