Not 100% sure what you mean by that. By setting the form, you mean using the batch editor ".Form" argument to set the Pokemon to the specific form I want? I did and also the form changed when I used told the batch editor to change the form of that particular Pokémon in that specific location of the my PC box.
Not necessarily. I tried this like a year back, mons like Oricoro work (I'll have to try Oricoro again, since it's been a while), and a couple months ago even Zorua as well, surprisingly. And yeah, I know the risks from HOME well. I'm willing to take them. Thank you for the heads up regardless. Btw, Oricoro forms also don't have the dropdown menu as well.
However, some forms did not revert back to normal. This seems to be specifically affecting Arceus and Furfrou (from what I have tried), and maybe more mons that have forms unavailable in SWSH.
Soo, that was actually one of the first things I tried a while back. The Arceus and Furfrou forms still revert back to normal regardless. but yeah, viewing and-setting does not work since Pkhex Gen 8 thinks still thinks it's a regular form Arceus/Furfrou despite clicking view on an Alt-Form sprite.