CTRL-Left Click
 

Rythal I understand that you are incredibly busy, and I very much appreciate the work you do, however, I have noted a problem on line 849 of NxOptions.lua...

name = " " .. L["Ctrl Left Click"],
desc = L["Sets the action performed when middle clicking holding CTRL"],

Should be:
name = " " .. L["Ctrl Middle Click"],
desc = L["Sets the action performed when middle clicking holding CTRL"],

I hope you find this useful.