SRB2Kart Asymmetrical Kartmaker template, how do i get it to recognize it?

[Sketchy Phlowa]

so i wanted to make an asymmetrical Kart character, but the example templates lack the option for one, according to the wiki, there *is* an asymmetrical template, but it's not in the most recent version of kartmaker from my research, can someone help me figure this out
i asked in the srb2 discord earlier but nobody responded