Taken from the RealmCrafter: Standard documentation.
Script[]
// Default mounting change script for player characters
// You may alter this script however you like, but DO NOT RENAME OR DELETE IT
// This function is called when a player mounts an actor
// The actor is the player, the context actor is the mount
Function Mount()
// Done
Return()
End Function
// This function is called when a player dismounts from an actor
// The actor is the player, the context actor is the ex-mount
Function Dismount()
// Done
Return()
End Function