This area contains a collection of predefined wave pairs marked by shaded bands. Each shaded band also contains a small image (a thumbnail) of the pattern produced by the wave pair. Clicking anywhere on a wave pair’s shaded band selects the wave pair and draws the corresponding pattern.
Only a subset of the predefined wave-pair collection is visible at once. To access additional wave pairs use the scroll bars to the right and below the waves. Alternatively, you can select wave pairs using the up and down arrow keys. Pressing the enter key draws the pattern corresponding to the selected wave pair.
It’s also possible to select a group of wave pairs. Group selections are made using the Shift and Ctrl keys. Once selected, the group can be drawn simultaneously (by pressing enter), cut or copied. The wave collection also offers a context menu.