How to distribute to external tester groups on TestFlight?

I know there are a lot of questions around it, but i feel it’s still not clear.
Is it possible, using native workflows (and not Fastlane), to upload a build, and automatically distribute it to external groups of testers?

Hey @MichaelTabEargo ,
I think there is no Bitrise Step at the moment for automating the TestFlight beta review submission.

We plan to introduce a feature like this in Release Management this year, but I’m not aware of any plan related to a Bitrise Step.