ways and workings of the "Test Cluster Only" checkbox in Developer Keys

[nardell]

I had a quick reality check question about the "Test Cluster Only" checkbox option in the edit view of a Developer Key. I have not used this option before in practice, and wanted to make sure I understand its correct use. I want to benefit from setting up the Developer Key once and leverage the weekly copy to beta, monthly copy to production. My thought is that I would achieve this this by setting up the Developer Key on our production Canvas, and checking the "Test Cluster Only" option. Once the production data has been copied to non-production beta and test, I would be able to use the Dev Key on those systems without risk of the key being enabled on production.  Thanks for confirming my understanding on this (or correcting me I I got this wrong).