Need to enhance the screen of sepa mandate(fsepa_m3)

Hi Experts,

We have a requirement of adding new field on the screen of Sepa mandate maintainance( Tcode FSEPA_M3 , (Give a mandate ref id and hit enter)) . We have tried but there are no screen exits BADIs provided by SAP. Is It possible to do it using BDT customizing or any other way ? IF possible using BDT kindly provide the details of transaction for publishing the application and the path in SPRO for configuring the same.

Regards

Priyank