Multiple cursors: supporting arrow keys / home / end / delete / backspace

When multiple cursors are enabled, using these keys reverts back to single cursor mode.
Do I need to rewrite my own version of the standard cm6 Commands library, so that all functions support multiple cursors, are is there an easier way ? And if I go ahead and do the rewrite, should I keep it within my project, or would you be open to a merge request?

Are you including the default keymap?

Ok, my bad. Removing all my keybinding customizations fixes the issue. Sorry for wasting your time.