Create keybinds based on keycodes for non-US keyboards

I have a keyboard with a non-US layout, and I would like to use some of the keys with non-english characters on it for custom keybinds. However, since I also often switch between US and native keyboard layout (Estonian), I would like to create these bindings in such a way that they map the specific key, rather than the character.

Currently this can be done for some keys, eg. RBracket and LBracket, which show up in the verbose log as `key: Some(LBracket)` , however, many keys show up as `key: Some(Unknown)` and as such I assume they cannot be used in keybinds.

Is there some way to map actions to these keys based on their keycode/scancode. If not, could this feature be added?