Anyone know what this button does ?
I’ve tried it a few times but it doesn’t seem to do anything.
The button clean the selection you made using lasso , when you select selection with lasso the area will turn red , and if you made mistake you can use the " clean selection " to undo that . Nothing more about that .
Ah, I see now. Thanks.
Thought it was something to do with cleaning the actual point cloud/mesh. 
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Revopoint just released a very good video explaining all buttons , I was about to do that but they got first so check it out .
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