Using shift / control as modifier

[Monroe1701]

Hello,
There was another discussion about shift as a modifier and new code for that.
I tested that and it works fine for either activating or deactivating the zoning feature via modifier key (e.g. shift).

I would like to also have another modifier added (e.g. control). While this modifier is pressed every zone you hover over will combine to one big zone.
With FanzyZones under Windows I have devided my workspace into 4 equally sized columns and use shift to activate zoning and then control to combine zones to my liking on the fly.