When you press the edit button on the main dialog or double click an item in the window list, the Edit entry window (below) will appear.
Edit the current text and press "Apply Changes".
Note: Window Tracker searches for partial text.......It is not recommended to add short titles like "the" or "and" or "sponsor" because Window Tracker would close the windows that say:
"This is the......" or
"Bob and Jill" or
"Please select a sponsor"
The more specific you are, the smaller the chance that window tracker will close a window you do not intend to close.