: I've copied a A.frm online (A size). When open the drawing setup : file, the units is in inches with a red cross in the status column and : it doesn't let me change to mm. Any idea what I am missing?
Thanks, Stu, nice to hear it 'from the horse's mouth'. I just want it to be clear that what Goeff wants to do is edit the format file. It has a limited number of detail settings, one of which is units. Don't know why that would be in there if you could not change it, but that's some of PTC's delibertately confusing genius. This is one of those legacy areas where it was more common than it is today. Fortunately!
The problem is that a format contains draft entities which are not parametric and for which there is no conversion function. In part mode, when you change units, it offers a choice ~ convert dimensions by conversion factor (25.4mm to 1 inch) or translate numbers from inch to mm. The format has no such conversion capability, so draft entites created in inch system and changed to metric would be 25.4 times smaller (1 inch translated to 1 milimeter), completely screwing up your format.
David Janes