User's Manual

Remove
Recipient
/Subject,
Picture/Video/
Audio/ Text)
Depending on the cursor location, the Remove item varies. If
the cursor is on the Insert Audio field, then this item shows
Remove Audio.
Slides (Insert,
Delete, Next,
Previous,
Duration)
You can create/delete slides in your message, navigate
between the next and previous slide, or specify the display
duration of each slide.