How about a command finder tool?

DevonThink has so much to offer, but often I do struggle with finding what I’m looking for in the menus.

Or I just don’t know what’s available in terms of functionalities.

So I always wish there was a simple command finder tool, which I can invoke with a keystroke and lets me type in some keywords to find a relevant command.

Something like OSx Spotlight. Or the Command Palette in Atom ( … nd-palette)

Any thoughts?

The search field of the Help menu searches not only the help but also the main menu, maybe this is what you’re looking for?

You can already do that in the searchField of the Help menu.
Also, you may want to look at a hotkey utility like Media Atelier’s CheatSheet.