Keys that are used to do "Roll Up" & "Roll Down" in iSeries - Running JDA WMS in iSeries

Hello,

Does anyone know what keys to use to do do "Roll Up" and "Roll Down" in a
JDA WMS running in iSeries V7R0?

If I use the regular "Page Up" & "Page Down" keys and do a page up & page
down nothing happens. It sounds like it might be using the old Function
keys from F25 to F30. If so how do I press F25, F26, F27, F28, F29 & F30
keys? We have a software that has all these keys soft coded, I just need to
know what code to send to the iSeries server to show that these keys have
been pressed, so the iSeries will do Roll Up and Roll down.

Many thanks for the help.

Best regards

Puga