Hi there, JAK-TSD. 

I can see that there are separate threads with have similar questions about matching transactions in QuickBooks Desktop for Mac. 

Let me share these links so you can follow the steps provided in this threads: https://quickbooks.intuit.com/learn-support/en-us/banking/re-how-to-select-multiple-downloaded-trans...

Please know that you're always welcome to post if you have any other concerns. Wishing you and your business continued success.