Apologies if everyone else knows this, but are people aware that when you customize your own key command, it will show up on the correct key mapping when viewing Key Commands from the Help Menu? In my example, I assigned the tilde key to the command to “select to the end of flow”. Notice the keyboard mapping shown by Dorico’s Key Commands. You can see what this key looks like in the attached picture (this key is to the left of the “1” key). I’m not sure if this works for all customized key commands, or for those that have multiple key commands for the same function.
I assumed this layout was static and only included Dorico’s default key commands.