Connect to a different AS/400 system while working on another and comeback when finished.
This technique works with V4R4--make sure that the AS/400 is in the TCP/IP Host table entries.
From one AS/400 system command line type:
TELNET "AS/400 system name"
New Sign-on display will appear for the new AS/400 system
Log-on to the new system
When finished working you can sign-off, then hit ESC key then option 99 to end telnet.
You should come back to your previous AS/400 session after ending Telnet.