The slide sorter lets you get an overview
and rearrange the order of slides:
To reorder the slides, drag a slide to where you want it to be
in the sort order. While you drag, an insertion bar shows where the slide
will go, and text in the lower right of the window describes where the slide
will go.
Hitting the spacebar is the same as toggling the Slide Sorter button. The currently
displayed slide will be highlighted in the sorter when you enter it. When you exit the
slide sorter, the currently highlighted slide in the sorter is displayed at full size.
The Options popup menu lets you choose the size
of the slides, plus whether local, remote, or both local and remote slides are
displayed.