Hi, @PKN2020. I appreciate you for doing some research to achieve your goal. 

Let me share some information about the bank memo in QuickBooks Desktop (QBDT).

After you download your transactions through bank feeds, you can see that the Memo will show as a Bank Memo column. You can set that up in the settings ⚙ by ticking the box. I've included a screenshot for visual reference.

If you want to put a description of the transaction, you can change or put it in by clicking on the bank memo field without having to select "Add", then "Add more details". That should make your work a lot easier and faster. Please refer to the screenshot below for your guide.

Moreover, you can visit this article to learn how to create rules to help QuickBooks match your Bank Feeds transactions: Create rules to categorize transactions in QuickBooks Desktop.

 If you need further assistance managing your bank transactions, don't hesitate to leave a reply. Take care and have a good one!