Declare internal table in smart form to pass data from driver program

Hi,

I have an internal table in driver se 38 program for smart form

The internal contains fields from 5 tables

I have retrieve the data from database and passed it to internal table

Now i have to pass the internal table data to smart form in order to print

My question is how do i declare the internal table in form interface

I know we have to create a structure with same field that i want to display and using that i have to declare an internal table under TABLES tab in global Definitions

I was thinking whether we could declare the internal table in form interface and pass data from se38 program to smartform with out creating the structure

Let me know whether its possible to declare the internal table without creating structure in se 11

And also whats the purpose of import and export tabs in form interface

Thanks