According to the CIQ documentation, Menu2 is supported in version 3.0.0. However, in the simulator, Toybox.WatchUI has :Menu2 returns false for D2 Charlie, unlike every other watch that currently supports CIQ 3.0. I was wondering if this reflects the actual feature set on the watch, and if so, whether there should be a note in the docs. Obviously this is something that can and should be caught in testing (and possibly at run-time, with "has") , but it was a little unexpected.
In contrast, Toybox.PersistedContent has :getAppWaypoints returns true for D2 Charlie, which is another CIQ 3-only symbol.
https://developer.garmin.com/downloads/connect-iq/monkey-c/doc/Toybox/WatchUi/Menu2.html