How can I add new nozzle sizes for my K1C in Creality Print?

The title says it.
I bought .6 mm and .8 mm nozzles for my K1C so that I could hopefully print nylon-cf without clogging. Creality Print only offers .4 mm nozzle size for the K1C. I have added a copy of the K1C and tried to change the nozzle sizes but it in not clear I am doing all the right things. It would be nice if creality could offer preset printer choices for the K1C with .6 and .8 nozzle sizes.

Here is how you can change the nozzle settings within Creality Print. One thing I forgot to mention: you must be in the “Prepare” screen to do this. Make sure to save any changes you make before closing the menu.