I’m not sure it’s possible to disable the auto logout within the WebUI services.
You may need to submit a PMR to IBM to see if a setting even exists to do this. I did a quick Google search for “bigfix” and “_WebUIApp”, but not finding anything.
Alternatively, you could use a dashboarding tool like IBM Dash or an open source alternative that updates queries for the desired dashboard on a schedule via the BigFix REST API.
I will have a play with the WebUI logon timeout and determine whether there is a way I can allow only specified users to have the extended timeout. I’m hesitant to implement the extended timeout globally as that is likely to result in administrative sessions remaining open.