How to call Smart-Form from DMEE Function Module?

Hi,

A FORM layout is required for the Input VAT for Fixed Asset Report. This form will be called for printing within the Advanced Tax Report RFUMSV00.

Now, I have been asked to create a DMEE for Input VAT Fixed Asset Report, which calls a function module to call a form print - smart-form.

Earlier I have worked on few DMEE to create Tree structure and there I have used lot of Exit Module (Nothing but ABAP FM having fixed format). But, I really don't know how to trigger Smartform from DMEE Function Modules.

Can anybody put some light please?

Thanks, Arghya