I just noticed for the first time that, in contrast to fire, traps, buttons etc., trigger areas of updrafts don't actually display any label in clear-physics mode when hovering the mouse over them. This is especially confusing if that trigger area happens to overlap with other trigger areas, e.g. those of traps or exits.
The only other unlabelled objects, as far as I can tell, are hatches. Not sure whether those need a label in CPM. But any other type of object that currently still doesn't have a label in CPM should probably receive one.
