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Is there a way to select "all" geometry when your in the Sketch Mode? I've got a part with a lot of geometry on it. When I'm in the Sketch mode, I want to select all the geometry entities at once instead of picking them individually. I've tried using the Chain, Loop and Select All options but it doesn't work.
It seems that your question is not for "Creo Elements Direct Drafting".
You should move your post to "Creo Parametric" to have a better chance to get an answer.
You can window select, click the LMB and hold and drag across the sketch
If you only sketch lines, used the filter in the bottom RH corner "sketcher geometry"