To be able to see the secondary display, the mirror driver must be disabled, to do this:
In the Desktop Authority Manager Console:
In the ExpertAssist remote session:
Notice: Disabling the mirror display driver will highly impact the communication performance, use this workaround only when it is absolutely necessary to see the secondary display.
Issue fixed in version 10.1.0.1016. The latest version of Desktop Authority can be downloaded from our support portal download page.
A list of “Resolved Issues” is published in the product Release Notes accompanying new releases that can be referenced to identify if a fix for this defect has been implemented. Product Release Notes are available in the “Release notes and guides” area of our Support Portal.