In the Report designer,
to add a box, select the menu option File+New → New box
to add a line, select the menu option File+New → New line
Boxes and lines can be moved and resized in the same way as a text box. Their width and color can be adjusted using the toolbar buttons. that appear when they are selected. The following figure shows a box and a line being used. Since normal editing highlights are present, the structure and position of the elements can be seen.
The figure below shows what this looks like in an actual printout.