You can not assign the button to go to page 2. But you can assign a destination, first page, last page or URL. Destination in this case is a text anchor.
So all you have to do is to place text anchors.
The advantage of text anchors is they move with the text. If you rearrange your document and put a certain text frame somewhere, a strict button assigment would still jump to page 2, but not necessarily to the text part you wanted.
Finally figured it out. I do NOT use the button panel at all. No buttons needed. Just select the grouped object that I want for my button, and hit the "add hyperlink" button in the Hyperlink panel. Then choose "Page" from the menu that opens up and be on my way. What was throwing me for a bad loop, was that I had copied and pasted the button graphic form another document. Well, since the link made previously was broken now, I had the red flag in the Hyperlinks panel...and thus, the "new hyperlink" button was greyed out, sending me in circles. The minute I deleted the old hyperlink it carried over from the old document, the new hyperlink button worked again and all was well.
note that some link bugs have been fixed in 9.2.1