You can copy selected members or all members from a Librarian Master File to a PDS.
Example below:
//**********************************************************************************************************************
THIS SAMPLE JCL WILL USE THE GROUP PROCESSING OPTION TO COPY MEMBERS FROM A MASTER FILE TO A PDS (MVS ONLY)
USE -SEL NAME=/TEST,S/,EXEC(R) FOR SELECTED MEMBERS THAT START WITH TEST
USE -SEL NAME=,EXEC(R) FOR ALL MEMBERS
//**********************************************************************************************************************
//STEP1 EXEC PGM=AFOLIBR,PARM='NJTA,NRJS'
//SYSPRINT DD SYSOUT=*
//MASTER DD DSN=YOUR.LIBRARIAN.MASTERFILE,DISP=SHR
//OSJOB DD DSN=&&GPO,DISP=(,PASS),UNIT=SYSDA,
// SPACE=(CYL,(1,1)),DCB=(RECFM=FB,LRECL=80,BLKSIZE=8000)
//SYSIN DD *
-OPT GPO
-SEL NAME=/TEST,S/,EXEC(R)
-END
//STEP2 EXEC PGM=AFOLIBR,PARM='NJTA,NRJS'
//SYSPRINT DD SYSOUT=*
//MASTER DD DSN=YOUR.LIBRARIAN.MASTERFILE,DISP=SHR
//OSJOB DD DSN=YOUR.PDS.FILE,DISP=OLD
//SYSIN DD DSN=&&GPO,DISP=(OLD,PASS)
//