lpe of procdef with hidden channels

[pjljvandelaar]

As a user I would like to transform all procdefs using lpe.
However, currently only procdefs with channels defined in CHANDEF and direction specified in MODELDEF are transformed.

[pjljvandelaar]

For example, to lpe transform grab of the Wheel example.
I have to add

CHANDEF extra ::= Acquire
                ; Release
ENDDEF

and extend MODELDEF Model with

...
CHAN OUT ...
           , Acquire
           , Release
BEHAVIOUR ...