Batch analyse and search functions?

I’m trying to setup DJay Pro 2 on a new MacBook Air.

All of my music is on an external drive and I add the parent folder into the app but can only analyse one folder at a time. How can I scan the entire disk? (thousands of folders.)

The search files function only works if I am already in the folder which contains the song I am searching for. Not very useful! Please help!

I have checked and search folder is not selected. Search box says ‘Search My Files.’

I think I’m missing an obvious first step - my ancient PCDJ software used to scan the drive and show scan progress before anything was searchable - so an help would be greatly appreciated.

Thanks so much.