Just select a directory in the
Directory View, and the thumbnails for images in that directory will be
displayed in the Thumbnail View. Clicking on a thumbnail will show
the full-size image. Clicking on a directory in the Thumbnail View
will make that directory be the current directory for pv.tcl.
pv.tcl will show a directory thumbnail
if one is available. For instance, assume directory /tmp is the active
directory, and it contains a directory /tmp/blah. If directory /tmp/blah
contains any images, the thumbnail for the first image in the directory
will be shown in the Thumbnail View for /tmp/blah. You can view the
full-size image for a directory thumbnail by clicking on it with the right
mouse button.