The preview window shows every volume loaded in the Image Viewer. you can quickly access
to one of the images by clicking on the down arrow icon in the upper right corner. it will
pop up a list of the images.
In the preview window, you can choose to link (default) or unlink the views for the
current chosen interaction (see Sect. 2.4). The user can click
in one tabulation to switch to the corresponding image. When one of the image is shown,
you can easily delete it by clicking in its corresponding cross.