Hey @Jigs And welcome to the forum. There’s a few points you make there and difficult to address without further details.
No doubt Scaler 3 is a complex piece of software so takes some time and worth checking through the on-board tutorial, manual and guided videos on our YouTube channel.
If it’s MIDI you are importing you can just drag and drop onto Scaler 3 or detect through the Detection. If it’s XML you can import using the import function in the user presets.
Not sure what you mean by the search box doesn’t allow searching?
Detection via audio is never perfect. Piano house chords from 90’s tunes can be a little hard to detect but you should get an idea of key and scale. MIDI works 100% of the time.
Hope that all helps.