Hello, menion!
I found interesting problem. I frequently use tracks and points from "map items". When I tap on such track or point, it is not possible to hide it with drop-down menu, but it would be nice.
Even more, if I made copy of map items track, storing it in internal database, then I can't hide it with drop down menu too, but recorded tracks can be hidden without any issues.
And also, when I made copy of map items point, I can hide this point from drop-down menu, and map items point is also hidden! After that I delete copied point and original point still remains hidden! I look in left "map items" menu and all points must be visible, I reset and again set visibility settings of hidden point in this menu with no luck. The only method to show this point is to unload and then load file from map items menu.