Would be very nice to have this button or command.
When you select a circle or arc - it automatically creates axial lines (centre lines) for it. Preferably with “centre line” line type.
http://metal.brightcookie.com/2_draw/draw_t5/media/draw5_2_5g6.jpg
I tried to search for this but didn’t find anything similar.
This command would be very handy when working with a lot of drawings.