Change the default system shortcut keys

No, it's a system default. I can turn the shortcut on or off (I have turned it off).

When you try to create shortcut, a manually for an app (doesn't matter which one) and you use CMD + SHIFT + 6 do you see CMD + 6 or CMD + ? in the key window?

Hi and thank you for the reply;

Yes, Canadian French CSA input source, and yes my OS is in English. This is so strange! Even if I try to create a custom shortcut via Keyboard preferences, where you can see the result of your key input, my CMD + SHIFT + 6 registers only as a number 6!

Hello and thank you for all the replies. I don't understand why it works for some of you and not me. Maybe it's the fact that I am using a Macbook Touch? On the touch, the SHIFT+COMMAND+6 is the default key for "save picture of the touch bar as a file". This key combination is already system reserved, which might the cause of the problem?

Yes all other keyboard commands, as far as I know (I don't use them all) work well, except those who require a character found via COMMAND +SHIFT+ ANY NUMBER.

For those who have access to the CSA keyboard, please do me a favor: if you go to create your own custom keyboard shortcuts, where you can name the shortcut and see your key combinations, does your system register COMMAND + SHIFT +6 as a question mark? On mine, it just shows as COMMAND + SHIFT + 6 (it doesn't acknowledge the character above the number)

Since the help is COMMAND + ? could it be that it's not registering the key combination, because the combination required on the CSA keyboard conflicts with what the system already uses as a key combination for another shortcut specific to the macbook with touch bar ("save picture of the touch bar as a file")

Editing the shortcut to something else worked. Turning it off was not sufficient, it really needed to be edited. I did however check with someone else who has a Touch Bar, and he experienced none of my problems. It worked out of the box for him (no fiddling with shortcuts required). So I am not sure why mine was so complicated.

Regardless, my problem is solved thank you for your help.