| I don't know anyone that uses Cmd+Down. Cmd+O tends to be the popular choice. Because you're always in an app in macOS, Cmd+O is the more consistent choice: every app you're in will use Cmd+O for "open." In Finder, what you're opening is apps or files, so it works. Return for rename makes sense in a more subtle way. Besides opening a file, there are two "main" actions you'll use in Finder: renaming files, and quick-playing files. In a dialogue box, you'll either use Return or Spacebar (the former for triggering the highlighted button, the latter for another button you highlight with the Tab key). Consider again the consistency-across-apps argument. "Rename" isn't a super common command in all kinds of apps (a DAW will allow you to rename tracks, but that idea doesn't really apply to a text editor or IDE), so using Cmd+R in Finder for "rename" isn't necessarily great for consistency, considering that apps in general will almost surely bind something to Cmd+R ("run" or something like that). Due to the aforementioned dialogue box pattern, Spacebar or Return are the obvious choices for rename, simply by virtue of being used so much. Spacebar technically makes more sense because quick-play is adjacent to opening a file, but the ergonomics of "Spacebar = play" across so much media makes it the obvious choice for that. So, Return it is. |