Hi Ray - so here's the way to do a 3 point align.

1 - Place origin point at your first reference point.

2 - Click (click and release the mouse, not drag) on the orientation picker's x axis line. It is now the primary axis which can be oriented in any direction.

3 - Drag on the x axis line and release it on your second reference point.

4 - Drag on the y axis line and release it on your third reference point.



- Michael