Yes, the dedicated T-45 hasn't been released for MSF2020 just yet. I used the legacy importer to get a FSX v2.7 T-45 into MS2020. It leaves much... a lot to be desired (pitot heat on prompt is always on in the cockpit, among other deficiencies and abnormalities), but I was tired for flying cubs, cessnas, and the weird French-mobiles around. I just needed to feel the power between my legs. Can't wait for the dedicated MS2020 T-45! DCS has a freeware T-45 coming out soon too, as I am one of those fools.