Yes, you understand the new syntax correctly. To answer your questions, 1: In that case, the original default bind should be overwritten, and the Hold command should remain untouched. 2 and 3: I'll have to look into this to see what the behavior is, especially if commands have double quotes in them. 4: Yes, the Tap/Hold…
What you are noticing is actually a new feature of 11.5: Hold keybinds. The second field (those extra double quotes) defines the command for the Hold keybind. By utilizing this field, you are effectively doubling the amount of keys you can use without increasing complexity with modifiers like Ctrl or Alt. If you have…