From what I know this action is not a premium one.Here are the stepts to make a duplicate of a page:
http://help.interactbuilder.com/m/16264/l/164246-p...

Let us know if you are still having problems with it.

Hi Eileen, you can download demo apps directly from InteractBuilder as shown in the picture below:

Could you make a sample app with that specific text element and the audio for it and send it at alin@interactstudios.com so we can investigate this situation? Thank you for you feedback.

Eleisha could you check if you can share and preview a small one page app? Let us know how it went. Thank you for your feedback.

Hi Eleisha here is a link towards our user guide were you can find more information about this situation:
http://help.interactbuilder.com/m/16264/l/164194-a...

Basically for Android of for devices with smaller or bigger resolution you can make a copy of your app and adjust the resolution of it for other devices as shown in the link above. Let us know if you need anymore information. Thank you for your feedback.

Are you able to share a sample app? If you didn't try it, just create a one page app and try to share it and test it. Let us know the result.

A solution for this will be to view the book at smaller %. In your case the book is viewed at 79%. Change the view by clicking that number and make it smaller. Let us know if that helped. Thank you for your feedback.