ZBrushCentral

Can DragRect stroke's rotation be constrained?

Is there a way to constrain the rotation of the DragRect stroke to stop it rotating, or at least to snap its rotation in precise increments? I am trying to line up the painted on image perfectly so it is not at a rotated angle.

I’m very new to Zbrush, but isn’t there a seldom used but handy stroke that involves using the space bar to lock it in?

like transpose smart mask? It’s in this video at around 5 minutes into the video.

Using space bar, he locked in the size but I don’t know for sure if this is the same thing.

Thanks, not quite what I was looking for, he does not show how to snap the rotation in precise increments. But it’s an interesting video.