We were able to observe that it is not possible to have a single user access UFT Developer working in a multi-session environment by accessing separate instance of the UFT Developer engine runs in each session. The reason for the situation is that; to run a separate instance of the UFT Developer engine in each session, you must configure unique port numbers for each session. And to configure a unique port we need a unique %localappdata%\LeanFT\config\config.json file, which is in turn unique to each User account logon. However it is possible to make an Enhancement Request for the inclusion of a “MultiPoint service” to allow one User account to be logged on to multiple sessions simultaneously in LeanFT (UFT Developer). Refer to that of Microsoft: https://docs.microsoft.com/en-us/windows-server/remote/multipoint-services/allow-one-account-to-have-multiple-sessions.
SPARKS:SD02772750 There are a lot of options and none of 'em sounds like LeanFT or UT