There is no way to roate 20 degree in schematic, but you can create your own symbol. In PCB editor, you can 

I want to draw a 5-phase stepper motor as 5 inductor in a pentagon shape in schematic, I need to be able to rotate.

double click the 45 degree resistor to check how to draw a symbol like that. you can draw any shape, just make the `pindot` to zero length. If you can't make this out, add your stepper motor image link at here, we will help you.