Thanks very much for that.

I checked out Autohotkey and was uneasy about it being used by malware...

https://thehackernews.com/2021/05/experts-warn-about-ongoing-autohotkey.html

so I think I will keep the main BIAB program open and use that for chord detection and then just write the chord name detected into the DAW plugin.

I'll probably carry on using the main program anyway for songwriting because it's so much quicker to experiment with alternative styles without having to render and drag out as in the plugin. And it has other features that I miss in the plugin.

Thanks again for your helpful suggestions.