How would I go about creating a pcb trace for a button like in the image attached?
I'm only able to draw traces horizontally, vertically and at 45 degrees which looks a real mess.
Traces can be drawn at any angle and you can manually set x,y coordinates of the start and end of a trace, there are no real restrictions. Release 10 has a polar grid option but it probably isn't worth setting one up for this.
For the above pattern the simplest method would be to draw two vertical trace 'fingers', select one and from the move menu rotate selection to rotate it about the centre by 9 degrees. Select them both again and copy then select paste array from the paste special dialog which will let you paste an array of 20 in a circle.