How can I add second or third rows of free text in the header or summary cells of my custom reports?
Click and drag the gray bar just below where you want to add additional rows (either a body cell, or the footer cell) and move the cell below down enough to make room for your extra rows. You can then move your free text (or any other attributes) to create multiple rows. You can also move body cells in this manner to change the look of your report.
