The report window is used to view the report on screen, or when you're customizing a report. You can use the horizontal and vertical scroll bars to view the entire report.
For certain reports that deal with transactions, you'll notice a box around the lines containing transactions. When you move the cursor over the transaction lines, Sage 50 displays the box for each line that contains transactions, and the cursor changes from an arrow into a magnifying glass with a "Z" in the center.
Double-clicking the transaction with the magnifying glass displays the original transaction—in this case the invoice in Sales/Invoicing. You can choose to view or modify the transaction here.
Hold your mouse pointer over the buttons at the top of the window for an explanation of each button.