Sometimes you draw a maker pen shape and need to tweak it a little. Maybe it doesn't match up with another shape or your controller shifted while releasing the trigger. Currently you have to delete and redraw.
An "Adjust" tool would allow you to grab the face of a shape and move it in or out, resizing the object. Direction of the resize would need to be perpendicular to the face plane.
On vertices the tool would resize all connected edges depending on how the vertex was moved.