I use Ctrl+Shift+P in Sublime Text to get wherever I want to go, and Alt key is my the most favorite key to navigate when I am lost. With Alt key, you can make up your shortcut keys yourself. Alt+... is default! I am gradually moving to VSCode for both C# and Ruby. I haven't done anything great in Ruby yet, but work is in progress.
I also love the way your try to remember exact shortcut keys. I'll try your formula, and see if I could improve.
All the best!
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