UDETs

A User Defined Element Type (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