As a form creator, sometimes you want to draw the form user's attention to a particular spot in a form. You can mark such a spot by selecting it and clicking the Attn Mark button (even adding a message if you like). After the form is filled in by a form user, the cursor jumps to that location in the document and your message is displayed. You can even mark several spots in the form for attention, allowing the form user to proceed from one to the next by clicking the Attn button, seeing each of your messages as each location is highlighted for their attention.
Originally submitted by Scott Campbel