Avidyne IFD540 Pilot's Manual page 116

2 Custom Timer Examples
Custom timers have a default name of "Event" with an
accompanying "Event" CAS message at expiration. If the custom
timer name were manually set to a blank, then the CAS message
will be "Timer".
TIPS AND TECHNIQUES
Separate "Switch Tank" Alert
A specific Switch Tanks alert can be created via the
"User Options" LSK on the SETUP tab as described
later in this manual.
4-8 AUX Pages