How to thicken imported DXF lines for solder mask

[Mike_Lemon]

Hello,

So I’m trying to make those lines I imported thicker to work as a solder mask remover for the edges for mostly aesthetic reasons like the DJI 450 frame

How’s you do it?

Thanks.

[kiki]

Does anyone know how to set all the selected line widths in one go?

When I import DXF files the line width defaults to 2.54mm. On the OS X version I can only change the widths one line at a time, except for one time I selected the lines and an option appeared to set them all at once to the default width set in Preferences. I cannot find that option again. Does anyone know how to set all the selected line widths in one go?