See image. I hope I didn’t break it. I was assigning a lot of them.
Your screen is too small 
The mapping section on the right will start overlapping options when you’re using a small screen size.
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You can drag this border (indicated with the red arrow) to the far left.
Also make sure to enter fullscreen mode. Click on the GP logo ((indicated with the orange arrow)).
Please report if things are better with these adjustments.
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Yes - thank you! That worked great.
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