Try this. You need a DD name for INA and another for INB, and you specify the same DSN for both.
//SYSIN DD *
//JNF1CNTL DD *
//JNF2CNTL DD *
If you look at the output (subject to any typos, this is untested) then on the "left" of each record you will see the "current" record, and on the "right" you will see the "next" record.
You then just need INREC IFTHEN=(WHEN=(logical expression) to OVERLAY 95:88X for those (most) occasions that you do not want to see the data on the right.