Thanks CorBlimey that was the answer I was looking for - I previously used a 2D system and was famililar with using layers in that.
The original purpose was to be able to switch in and out centre lines.
A centre line I used in one sketch was not available in a new sketch, so I though if they...
Have I got this correct:
I can only create a layer in a 2D drawing not in a 3D sketch.
If I create a layer in the 2D drawing can I then switch it on and off in a 3D sketch?
Why can't I create a new layer?
The dialog box is greyed out, what do I need to do to overcome this?
I learning solidworks from a book etc so all this is basic stuff
