Embed / attach another form into a LiveCycle form

I have been working on a form in LiveCycle recently, and had a request to add a button a user can click, that will bring up another form that is attached to it.

I used to do this with ease in Acrobat Pro, by adding an attachment, and then creating a button that will open that attachment, however I am a bit stumped as to how to do this in LiveCycle, and since my form was created in LiveCycle, I can no longer edit it or add this functionality in Acrobat Pro.

Just to reiterate / clarify, here is what I am trying to do:

- Embed another document into my LiveCycle Form (i.e. - Combine them, though the second document isn't visible until you click a button.)

  - Add a button into my LiveCycle Form which when clicked, will open the second form

Thanks in Advance