Custom Keyboard multiple keystrokes?

I had this set up on my custom keyboard mapping. I had to reinstall Windows and brilliantly did not export the keyboard file. Oops. So I'd had a macro that would hit T then Shift+[ then A which would enter trim mode, trim start, then go back to selection mode.

How did I do that??

Or is there a command that does that?

You can't do that in Resolve alone.

I don't know scripting, maybe that? Or some other macro software?

Aargh, thanks. I've painted myself into a corner. I thought it might be PowerToys but it doesn't seem possible there. The search continues...

AutoHotKey is great for this kind of thing.