Hi .start the bleed from the rear but as it is fitted with a compensator this needs to be in the open position to get pressure to the rear wheels.if you can bleed the rears with the wheels on the ground the better.
the fronts both bleed nipples will have to be bled but not in any specific order.
if you struggle to bleed the rears then bleed the compensator then the rears
in my experience I have never bled from the compensator.
which side at the rear first os or ns. same with the front which side first os or ns
you can start at which ever side you want .
it makes no difference which side you bleed first as long as you start at the rear