Thanks for reaching out to the Community, northwaytaxllc.

While reconciling accounts, you'll be able to utilize each transaction's checkmark icon to select multiple transactions or all of the ones on the page you're on.

Here's an example image of it being used to select a few:

Here's another image showing all transactions on the screen being selected at once:

I've also included a detailed resource about reconciling which may come in handy moving forward: How to Reconcile

Please feel welcome to send a reply if there's any additional questions. Have a lovely day!