I am a Mac user trying to figure out how to deal with the new update (I don't have High Sierra or Mojave). I would like to download the PTS to my Windows 10 partition. I don't have room for both the "live" game and the PTS, so I would like to download the PTS only and see if it works well enough on my Windows partition that I can play there after the update drops. Can anyone tell me how to do that? I have already downloaded the launcher, but when I attempted to choose "show public test environment" in the settings, it didn't show up after clicking "apply."