Problem with hotkey

I do not understand how this DE is made it’s incredible I make my shortcuts it puts me that there is 1 conflict while I have checked everything there is absolutely no other shortcuts which is in AZERQSD BUT when I want to do a house, my shortcut for home is ‘’ é ‘’ except that ‘’ é ‘’ is the basic shortcut to select control group 2 but the problem is that this shortcut I changed it car I have MIT Z but when I press ‘’ Z ‘’ or ‘’ é ‘’ it puts me on the group but I don’t understand why the basic shortcut so ‘’ é ‘’ can’t be removed you know if it’s a ■■■■ bug or me stupid?