Passing ITAB without creating STRUCTURE in SMARTFORM.....

how can i pass the Internal Table (ITAB) to the SMARTFORM, without creating a structure..

Currently ive to use the STRUCTURE because SMARTFORM doesnt recognises it..ive also tried declearing it in GLOBAL DEFINTION of the SMARTFORM, but was not possible to achieve..At the end, i ve to create a saperate structure for each ITAB..

That Means,

No of structure created inceases with no of itab passed..not an ideal situation..

Can GURUs show me the correct sloution for the situation..

Thanx,