Select data from sap tables RSDSF
Display SAP table details
RSDSF4INFO - Free selections/F4: Info structure
RSDSFCODE - Assignment Fcode <-> Form to be called
RSDSFIELDS - Selected fields for dynamic selections
RSDSFLDNUM - Free selections/Events: Assignment
RSDSFRANGE_S_SSEL - Structure of RSDS_FRANGE
Return Table index