The Stars tab contains short list of the 78 most popular alignment starts and 338 in the extended list compiled by Andrew Knight. In the Hint column there is short information on how to find the star in the sky. If you select a star and switch to Maps tab, APT will automatically select the map that contains the star.
You can use these stars to make GoTo aliment. Here is the procedure.
The option "Show only the visible stars" determines which stars from the list are visible in the current moment. In order the calculation to be correct you have to enter your observing site coordinates in Location settings tab.
Show button shows the selected object in the planetarium application.
To change the list order click on the column you want to define the order.