You can use operation ELIMI * to remove splitting. You can use with function PIT and pcr as below
*
****
ADDWT 8
/101
ELIMI *
ADDWT *
Plz read more useful info related payroll in http://www.sd-solutions.com/SAP-Payroll-Schemas.html
or try using T-Code PDSY.
Regards,
Woody