Your control should have door macros installed. The one you need to use is DOOR_1_S..I attempted to attach a screenshot of it, hopefully it worked.
To do it by long hand requires that you orient the door in the same manner everytime and use one of the arc EGA commands. Your equation for center point would then be 62 or X-62 depending on your orientation. You would also have to establish relationships with the start point and end points to the panel size to maintain the correct arc proportions.
If you send me a drawing of waht you want to
ntek1@aol.com I can create one for you.
Hope this helps
Mark T.