Located at the left of the editing area is a list box containing user defined regular expressions. Some regular expressions are pre-installed with your KDE installation, while others you can save yourself.
These regular expression serves two purposes (see detailed description), namely (1) to offer you a set of building block and (2) to make common regular expressions prettier.
You can save your own regular expressions by right clicking the
mouse button in the editing area, and choosing
If the regular expression you save is within a compound container then the regular expression will take part in making subsequent regular expressions prettier.
User defined regular expressions can be deleted or renamed by pressing the right mouse button on top of the regular expression in question in the list box.