Is it possible to use Mouse Navigation on keyboard with no numpad?

Is there a way to use mouse navigation (system settings > Accessibility > Mouse Navigation) with a keyboard that does not have a numpad? I would like to move the cursor and to click with my keyboard. If I understand correctly that is what mouse navigation does but my keyboard does not have a number pad. Is there some KDE way of emulated a number pad on such a keyboard. I have come across input-remapper but I cannot get it to work (I’m on openSUSE Leap 15.5). I am using mainly X at the moment, but wayland is working pretty well for me, and I would like to move to it so a solution that worked on wayland would be a bonus. I would be grateful for any pointers.