Is there a way to turn off the start/end frame markers? 

Why would you want to do that?

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 When I’m on a loop and I want to play a bit before and after I have to move the markers and then move them back to the previous loop position. It’s annoying. Maybe I’m doing something wrong? Does it always have to play within the markers? 

You can try to limit the number of frames in the project settings.

Thanks but that didn't work. There should be a way to turn that off.