OK, when using the MCE version, TMT(5) can be used with a standard MCE remote, without mapping anything. But if it works, it works
Kodi 19.1 Android/Google(TV) [ Shield TV Pro [64b] / Mi Box S [32b] / Mi Projector / Fire 4k TV stick / CC with Google TV ] Kodi 19 [3D MVC build] Shuttle DH270 [Kaby Lake i3-7300/HD630 graphics - W10-1903]