Hi Dannymac, welcome to the Forum!
The post that include the ORTHO function, are related with the V.16 and Earlier programs (discontinued versions).
You program (Version 188.8.131.521) has different resources. In order to adjust the walls' angles you can select / unselect the function => 2D => Snap to grid
Or try to detail the problem as specifically as possible, so we can understand the issue. Let us know exactly what you want to do, what you tried, what seems broken, etc. If you prefer, you can post a screenshot showing the problem.
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