I’m trying to create a assembly files.
For the top layer everything is just fine (first I plot file to gerbers: edgecuts, fsilk,ffab and fmask than I create a PDF using gerber -viewer.com).
But if I’m trying to output gerbers for the bottom which I will need in mirrored view the corresponding checkbox is gray (unavailable):
I can not understand why? How can I enable mirrored plot?