The account register will be the scene of much of your bookkeeping action. Let us get familiar with it first by entering a simple transaction.
To open the account register, select the Expenses:Office Supplies account in the Accounts tab and double-click to open it. Once selected, you can also click the Open button in the toolbar or click the right mouse button and select Open Account. GnuCash will open the Expenses:Office Supplies account register in a separate tab. GnuCash will start a new transaction and put the focus on the date field with today's date as the default one.
Let us make sure that your view settings are in line with the steps in the tutorial. Go to the View menu and confirm that there is a dot in front of Basic Ledger and Double Line is not checked, as shown in the following screenshot:
Click on the small button on the right of the Date field to drop down a date selection calendar. Click on yesterday's date...