I have finished my board and want to send it out for manufacturing. When I select to Plot->Gerbers, there is no option to plot the bottom solder mask. All other layers are there. I am I just missing it??
Found it now. pcbnew. top menu item “Setup”
First option in drop down is “Layers Setup” which is not in the design rules now.
After adding the B.Mask is appeared (unticked initially) in the PLOT window.
The 5.0 series is no longer supported, you might consider updating to 5.1.5.
And in future please do not reactivate a 4 year old post no matter how similar your problem seems to be KiCad moved on so much that nothing is similar to back then.