This is a highlight of my current plan for the new default mapping for all versions of the OSMC remote. I’m only listing things that are outside of stock Kodi (keyboard) behavior. This is all subject to change. I would appreciate thoughts, suggestions, and feedback.
Home - Set globally to return you to the home page with a single click. Longpress set globally to the fullscreen action (from the home screen back takes you to fullscreen as the one exception). Once you are on the home screen pressing it will send CECactivatesource, and longpress sends CECstandby. This allows for this button to act as a power/switch source button on both Vero and RPi’s if you use CEC.
Info - Longpress during fullscreen video turns on/off the debug log and its overlay.
OK - Longpress during fullscreen video brings up the playlist. When in the video library longpress will toggle the view between all videos and unwatched videos. Longpress on home screen reloads skin (useful for MySQL users). For text input longpress activates the OK button to finish text input.
Up - For text input longpress will press shift (upper/lower case). For fullscreen video longpress is set to next playlist video.
Down - For text input longpress will toggle symbols. For fullscreen video longpress is set to previous playlist video.
Menu - Set longpress global to open the side/slide menu. During fullscreen video it will toggle playerprocessinfo to emulate the old remote behavior, and longpress will bring up the chapter/bookmarks screen.
Play - During fullscreen playback longpress toggles subtitles.
Stop - During fullscreen playback longpress selects next subtitle.