Once you have installed Stopmotion you can start it by typing stopmotion in a console or from menues:
In the KDE menues you can Stopmotion it by going to-> ->
In the Debian menues Stopmotion lies under-> ->
When the program is started you will se the following:
The left area is the tools menu. On the top of this menu you have buttons for adding pictures from the harddrive , adding new scenes as well as deleting frames and scenes . You can also start the webcamera with the camera button .