I was your co-worker. Built a custom board entirely for aesthetic reasons, and didn't really know how to do anything that required a function key without trial

I was your co-worker. Built a custom board entirely for aesthetic reasons, and didn't really know how to do anything that required a function key without trial and error for about a year. Then a co-worker made fun of me. I memorized what all the modifiers did and became fully proficient in about 48 hours.