Usage: if %actor.varexists(on_quest_zone_1)%
The above usage checks if the variable on_quest_zone_1 has been saved to the
player file or to a mob (does not work for objects). It can also be used with
!%actor.varexists(on_quest_zone_1)% to mean does not exist. This is useful on
quests or other complex triggers that need to save variables to a player file
by using remote.
Example: TSTAT 138, 139
See also:: REMOTE