I need to create a PCB symbol for a board mounted mains transformer. I've read the tutorial and referenced a couple of other sources, but the instructions for drawing the physical outline seem to fail at the first step. There is no line drawing tool. I can place the pads, but how does one draw the outline with only the PCB tool box available? The drawing toolbox doesn't appear when a PCB Lib pane is opened. I've tried selecting different layers (top silk, board outline) but drawing a shape with the cursor only draws a dotted box for as long as left mouse is held down, and using the "track" tool for the outline doesn't work either. I'm sure as before that I'm missing something obvious to others, but it's not to me.