In Testflight, how can I view the total sessions-per-user for only one build in an external tester group? Right now, I can view total sessions for all builds combined, but I want to see total sessions per user for only this build.

If a user has sessions from previous builds, those are currently included in the total session count. I want to eliminate the sessions from previous builds in the session count.

If this cannot be done in Tesflight, is there another way to view this for an external testing group?