Hi Everyone! My slow old 2011 MBP with Sierra 10.12 finally needs replacing. I've bought a used 2017 MBP that comes with High Sierra 10.13 natively installed. I have a couple of obscure yet important 32-bit applications that won't run past Sierra, but I'd REALLY like to keep using them (the developers have no intention of updating them to 64-bit). I not fussed about having a later OS, I'm quite happy with Sierra. Can I 'downgrade' this 2017 MBP down to 10.12 Sierra? I read somewhere that this is not possible on a later MBP that shipped with a later OS, not possible to go backwards like this. Any advice would be GREATLY appreciated!