Center direction cv.jit.directions

I used the example from jit.directions and underneath is a whole subpatch that has the mecanics, this goes to a another subpatch with 'p draw' as name. This arrow shows the direction.
But is it possible to have the arrow change in to a circle when the direction is non or no direction.
The actual arrow doesn't need to change actually, but the centered or non direction needs to be registered. Is this possible and where do I need to look at to change this in the cv.jit.direction object?