Best way to explicitly rotate A axis on trunnion

I want to explicitly tip up the A axis on a trunnion to 100 degrees, and then return it to zero, no machining. I've never used CATIA to do that, just done manual edits to the ISO code. Can anyone tell me a good way to do this inside CATIA? I'm thinking to use the Machine Rotation (ROTABL) but don't really know how it works or if it's really the right approach.

Depends on your post I guess.
I have to do this all the time so I use the following APT commands (with a few others to help clear the part)

INSERT/'L  A+90 R0 FMAX'

CLAMP/OFF,AAXIS,90,MANUAL

We have Icam posts but I believe this would work for a few different posts

If you are just positioning the table then ROTABL/AAXIS,ATANGL,a is a good command (a=absolute angle).  There is also ROTATE/... with the same options.  Of course I can only confirm that this will work with G-Post but most likely will work with others. 

Fred Nemecek

Austin N.C., Inc.