Hi,
Indeed, LR sets OutputMode to 1 and this cannot be configured.
Here is excerpt from the Citrix ICA Client Simulation spec ( http://www.citrix.com/static/cdn/archivedsdks/simulsdk/9.x/sim_api_specification_programmers_guide.pdf ):
---
• OutputModeNormal = 1
This is the normal headless mode of operation. Select this mode prior to connecting to MetaFrame Presentation Server
to enable the container to receive window management events and obtain a tree of windows in the session.
---
Scripting for Citrix protocol would be nearly useless without operations on windows in Citrix session, that's why LR uses OutputModeNormal.