As in 8.90 B1 mentioned, it is a good idea to share useful commands via forum.
I want to share mine, but especially I am interested in yours!
Actually mine are very trivial but also very helpful:
Scan Video Library
(Whenever I added new movies to library and want to see it in Kodi NOW, I hit this button)
Clean Video Library
(Whenever I deleted movies in the library and want to see the change in Kodi NOW, I hit this button)
Switch to Profile KIDS
Built-in: “LoadProfile( KIDS, [prompt] )”
(I use different profiles with different kind of movies, e.g. KIDS, PARENTS, following command switches profile with one click)
Looking forward to see more useful commands!