Sorry, but the functionality you are looking for is not available with the limited Reader Eextensions capability available within Acrobat. Reader Extensions has a set of rights, and the following rights are available only through the server product (LiveCycle Reader Extensions). These specific rights are:
2 - Form Data Import/Export
5 - Spawn Pages from templates (for PDF page forms, as opposed to XFA dynamic forms)
9 - Barcoded form data unencrypted
10 - Browser-based annotations (note that this capability is being deprecated for use with Reader)
11 - Web services or ODBC access from the form
12 - Embedded File actions
[Acrobat enables basic form fillin, signatures, and annotations, as well as the ability to save the document after the data fillin or action has been done]
In your case, you either need to get a LiveCycle Reader Extensions license or move yourself to LiveCycle Designer-based forms where dynamic forms may do what you'd like.
I'd suggest a deeper discussion with your salesperson.