Ctrl+Z to undo symbology changes when symbology pane active

[wayfaringrob]

When modifying symbology, allow the Ctrl+Z shortcut to undo the last modification. Right now you have to click back into the map or layout frame to get the shortcut to work.

Ex. immediately after changing the color scheme, Ctrl+Z does nothing.

[KoryKramer]

@wayfaringrob if you clear the selection on the classes 

and then use Ctrl+Z, does it work for you? It does for me in testing what you're describing...

[wayfaringrob]

@KoryKramer  Yes, but that's an extra click either way; also, if you change the symbology without anything selected to begin with, it still locks you out from Ctrl+Z