Good Morning!

I am working in Composer 2019. In the BOM workshop, I can select the Callouts Attach point as "Center of the bounding box," or "Closest point to the center."  I would like all of my callout attach points to be an outside edge of the part.  Hopefully, all at the same distance.  Is this possible?  If it is, how do I go about doing it.

Thank you,

Eric