Why is my custom filament not showing in Studio

I changed to a 0.6mm nozzle and was trying to select my custom (PAHT-CF) filament that i used with the 0.4mm nozzle, but it is not listed in the drop down box. When I select the X1C with 0.4mm nozzle, it does show up…

Why are my custom filaments not carrying over when selecting the same printer with a different nozzle size?

Because it knows you need different settings with different size tips.

Yeahh, i know that, but now I need to create 1 from scratch, rather than just tweaking…