I recently wrote a blog on using Fusion 360 to help with complex part placement in an ECAD tool.
http://circuitmaker.com/blog/Blogs/guiding-funky-part-placement
About 3/4 of the way through the blog, see this:
"The idea here is to project the top of the bodies to a reference plane to get sketches of all the placement guides. Here is the only down side - Fusion 360 requires you to click on each body separately to group the projection operation. There is no way to select them all. It only takes a minute or two though! And think of all the time you’ve saved otherwise!"
If I have a large group of bodies that I want to use in projection operation, I have to click on them one at a time. for large patterns this is time consuming. It would be great if I would select everything in the tree menu on the left to save lots of clicks
