(Beginner Here) How to Bevel All Curves At Once

Question

I am a new Blender user attempting to animate CAD files 3D printing. I have managed to import G-Code into Blender using an Add-In, but they come in as curves without volume and I need to make them look like 3D printed filament. To do this, I would like to bevel all the curves at once, but it does not appear to be as easy as "A" -> increase depth. How do I make all the splines beveled so the object appears 3D printed?

Answer 1

Then you have all curves selected, click on value that you want to copy and from context menu select Copy to selected