1. Not possible (except if the additional method described below is used).
2. This is possible, but it requires setting up the layers and then a system of buttons and scripts to show/hide them.
3. Also possible, but much more complicated than using layers.
Another option is to use a script to prevent the user from entering a page, unless its done via a button.
However, all of these methods have their disadvantages and can be very annoying for the users. You should really think if you want to implement this feature...
Hi try67! I too would like to restrict my interactive PDF users from being able to advance to the next page without first interacting with the features on the page - ie force them to use the forward and back buttons. Can you elaborate on the "script to prevent the user from entering a page, unless its done via a button" option please - would it be entered as JS on page load? Thanks!
If you'd like I can develop this script for you, for a fee. You're welcome to contact me privately (try6767 at gmail.com) to discuss it further.