Thank you for the pointer. That will do for the time being (= the next years).
Regarding the “Toggle Pin” … at this stage it is mainly a phrase which FS2024 uses for a button in the lower command bar when walking in “Avatar” mode. That will toggle the POI markers as well as the on-aircraft “Touch and Check and have Fun” spots.
I have to say that I do like the “Avatar walking” mode … the level of detail which some aircraft have hidden behind closed doors is really impressive.