Answer:
Make a Vivillon in PKHaX note the order of the forms there. Then make a Scatterbug in PKHaX and use the order of the Vivillon forms as a placement for the number you should put in the box besides forms.
For example, I wanted a polar vivillon, so in PKHaX I put a number 2 in the box next to form
Hi everyone
I have been trying to generate a scatterbug that will evolve into a form other than Icysnow. In PKHex there is no form option for scatterbugs, and I also tried using the Country, sub-region and 3ds region.
When this didn't work, I tried saving an existing scatterbug of mine (that evolves to river) as an ekx file, and genned it. It still evolved to Icysnow
Does anyone know a way around this?