Text Edit on modulepool

HI experts,

Plz help me that how I create text edit on selection screen on module pool.

   SELECTION-SCREEN BEGIN OF SCREEN 100 AS SUBSCREEN.
    SELECT-OPTIONS   s_bpno FOR lv_bpno.
     *****************????????????????*******************
    SELECTION-SCREEN END OF SCREEN 100.

I need to create Text Edit to take input as detail like address or explanation etc

Your help will be appriciated..

thanks and regards,

Anup Banerjee