Zoom in : use this option to zoom into image.
Zoom out : use this option to zoom image out.
Zoom 1:1 : this option can be used to restore the image to his original size.
Fit to window : this option can be used to resize the image, so it can be viewed completely in the image window.
Film properties : use this option to display a dialog showing the informations of the currently selected film.
Image properties : use this option to display a dialog showing the informations of the currently selected image.
Query images : use this option to display the query dialog. This dialog can be used to enter query parameters, to extract lists of films and images corresponding to given criterias.