It always amazes me when enterprises use free emulator toolsets. If MobaXterm is a hllapi complient emulator (i doubt it will be - it is an industry standard interface that no free emulation tool seems to include) then you can use your standard mainframe emulator. If it does not have hllapi my strong recommendations is to find a hllapi complient terminal emulator that can interface with Unix boxes (most can), or your only other option is to read the 'Surface Automation of Terminal Emulators' guide on this portal. A hllapi emulator will pay for itself in robot licenses and infastructure - as the robot will be many times quicker.