[PatK]

I am not sure I can achieve what you suggest just using that.

You've been using a TV remote for years, does that mean you've had access to this information screen previously? Remapping a remote for a keyboard key is not rocket science, but requires a bit of diligence and some editing software skills. Keymap (wiki) gives a link to the editor and locations of the files that need adjustments. I've been using a FLIRC (wiki) for years and it allows any remote (including your TV remote) to be used with a dedicated Kodi map set-up. An alternative is one of the wireless media controllers such as the Logitech M830 or wireless keyboard mouse combinations.