UDETs

A UDET may be used wherever an element type is valid. For example:

(:MYBOX 1 OF /VESS1 )

NEXT :MYBOX

FIRST 2 :MYBOX

The following exception applies: when climbing, either the UDET or the base type may be specified.

For example:

At a BOX below /VESSEL which is a :MYEQUIP.

:MYEQUIP - will climb to /VESSEL

EQUIP - will also climb to /VESSEL