It would be a nice touch to have a Circle Tool so Barriers are nice and round.I know it can be done Manually but a bit annoying 
Also for other shapes with an Auto place Barriers when shape selected and of course barrier type.
Another thing 1x is too Fast Needs slower speeds as gets hectic when loads going on
Also for other shapes with an Auto place Barriers when shape selected and of course barrier type.Another thing 1x is too Fast Needs slower speeds as gets hectic when loads going on