From a post about “Draw a line perpendicular to a line or surface in SketchUp” (Make, Pro, Web, iPad), using native tools
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I saw the video pop up in my subscriptions and knew it was about autocad being better than sketchup… 
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Salut Pierre,
a pleasure to read your comments on the posts.
I like AutoCAD, it was the first program I learned, so I will add tutorials for SketchUp ‘AutoCAD alike’. 
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I had the same thought!