Cadence Allegro Parts Developer

Hi,

is there any way to add cusomized menu entries into the Cadence
Allegro Parts Developer which calls "external" functions or even Skill
code ?

We already have added new menu commands in Concept and PCB Editor
which call the skill engine to extract some data from the design
database.
We would like to do the same now for Parts Developer, LibExplorer and
PTF Editor.
Has anybody ever done this or if this possible?
Is there some Skill reference manual availabel for these tools ( if
skill can be used) or maybe a kind of automatino API (C, DCOM, JAVA)
etc.

Thanks in advance

Froedie