Hey Rich, Sorry for the delay, are you still working on this?
For ATTTE, I assume it accepts a bundle value with session name, but after looking throgh the EHS manual I see that there is not a way to pass a bundle value. EHS Advanced Settings - Zebra Technologies Techdocs
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It looks like you can pass a bundle value with EHS now. Is there a way to pass the name of a session to Velocity so it will launch the host profile on app launch?