Changing keyboard from file

Hi,

I have a custom command on ctrl+;, ctrl + ', and ctrl +[. (My shortcurts are æøå)I can go into keyboard shortcuts and remove the default shortcuts, but it still seems that LibreOffice blocks my commands. So I was wondering if I can completely remove these as keys you can use for keybinds? Or if another method exists for me to use æøå on the aforementioned keybinds.

This is an issue in both writer and calc, and I would imagine all other LibreOffice programs