How to Map - Highlight multiple songs

How to Map - Highlight multiple songs

what command allows me to highlight multiple songs - for example Shift + arrow down in a spreadsheet.

I’ve tried various ways, and I somehow I mapped something that highlights in reverse order the entire list of songs below the cursor. Not sure what i did, I’ve used this as a work around for sometime - but it sucks.

Help?

knock knock…smart midi mappers — need some help over here!