TN3270 Display Options

You can configure the options for running Mainframe Subsystem Applications using a TN3270 emulator in Tools > Options > Micro Focus Tools, and on the TN3270 Display page.

TN3270 Display

Disabled
Click this if you do not want the IDE to launch or search for a TN3270 emulator.
Host Access for the Cloud
When selected, an HACloud session is used to run or debug applications.
Restriction: This option does not support regions inside Enterprise Server for .NET, or connecting to Docker containers.
Rumba (Desktop)
Check this to run the applications in a mainframe session of the Rumba+ Desktop outside of the IDE. This is the default setting if you have installed a version of 10.1Micro Focus Rumba+ Desktop earlier than .
External
Check to specify the path to an emulator that supports TN3270, other than Rumba+ Desktop.