Hi, i installed a 2016 version of TS bought at amazon, it immediately updated to 2020 after registering the code. OK, but actually i want run a separate older version and just runTS 2016 as it is without updating, or even also an older version like 2013.separately. Reason: most 3rd party add-ons won't work with the 2019 or 2020 versions of TS ... Now how can you prevent Steam to mess with these older versions, and install them separately?