If you will excuse my unprofessional videography, and my stutter typing, and the long pauses while I review the source code that I am preparing my commit comments for,...
[youtube]
https://youtu.be/Fxx7cflz1lM[/youtube]
Here is an example of editing code, with the same caveats above. There is a lot of arrow key navigation. It is subtle, but see if you can catch the Layer 2 arrow versus the Ctrl+Layer 2 arrow.
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https://youtu.be/EoDmvbir_2E[/youtube]
Here is an example of debugging code, which relies upon function keys. See if you can catch the F10 (step over), F11 (step into), Shift+F11 (step out). You will have to imagine the Ctrl+F10 (run to cursor) and the F5 (continue).
Also, notice the initial use of the pinky side upper palm to press the Layer 4 key. Then the switch from the upper palm to the pinky knuckle. I will use the weight of my hand and switch from palm, to knuckle, to the outter side of my hand (not shown) to avoid hand fatigue as I hold this function key layer (Layer 4) while stepping through the code.
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https://youtu.be/vZY9iNbi3OE[/youtube]