Hi
I have tried this option in Micro Focus rumba
In the configuration have you checked the two option as below, If not do that and test
Launch the MicroFocus Rumba Desktop application from the Start Menu, Open a the appropriate ‘Display’ in a stand-alone Rumba instance (e.g. ‘Mainframe Display’), Go to the Options -> API… menu item,In the Identification tab set the Session Short Name to be a letter such as ""S"". In the Configuration tab ensure that the following selections are checked:
Generate PS Update on all keystrokes
Classic HLLAPI data structure (required to display the spy grid)
Click File -> Save Session Profile As… to save the current session profile to a file (e.g. BPDev.rsdm file)