Noob Setup - diary of a noob setting up a simple company - asking help along the way

I’m trying to figure out how to post the expenses in my checking account. Here is just the first transaction of Jan 2025 for example. An insurance premium.

It is in the bank register
Bank Register Image <–link to Imgur. didn’t realize I could paste images into the text box.

Here is the detail for the transaction in the bank register
Transaction detail <–link to Imgur. didn’t realize I could paste images into the text box

Where do I say that I want that transaction be posted to the insurance expense account?

If I go to the Accounting Posting screen I only see this which does not seem to have much edit capability
Posting to GL screen <–link to Imgur. didn’t realize I could paste images into the text box