starting from existing CATPart inserted inside CATProduct, I created symmetry CATPart with Symmetry command.
By CATScript, from existing CATPart, have been pasted with link some UserParameter and published them.
Unfortunatly, creating manually inside CATProduct two simple string parameters that are equal to published CATPart (existing and symmetry) UserParameter I obtain that, from existing CATPart formula is:
String.1 = `..!existing!BoundingBox`
but from symmetry CATPart formula is:
String.2 = `symmetry\External Parameters\BoundingBox`
If publication is made manually:
String.2 = `..!symmetry!BoundingBox`
Any idea on how obtain in symmetry CATPart correct publication ???