Add an incremental number button

[severinmenard]

Would be great to have the possibility to add waypoints with an incrementing number as any basic classic GPS device does, for the case the surveyor is using a thematic paper form to describe precisely and systematically the objects of interest.

[steve8x8]

+1
Some comments:
One would not want to get identical waypoint numbers in multiple files, so the number must be strictly incremented over time. Reset only if the app data gets wiped.
Have a predefined pattern (like most cameras do) or a user-defined one? How many digits to reserve?
Would be absolutely great if such a feature was available for user-defined menus!