Creality Print 6.

Hi-
Long time 3d printer here and recently bought a K1C and have the newest CR Print, 6.0
Can someone please detail the steps to change the settings in 6 for changing to a .6mm nozzle.
I have the printer setup for both .4 and .6 however within the software I cannot seem to figure out how to allow mw to change the nozzle size AND access all of the material choices. When I go to add ABS, the only material is PLA. When I go to the material setup it again only shows PLA whereas if I have .4mm, factory setup, it allows me to pick any and all material. I’m not sure how the System and User profile work with regard to material and nozzle choice.
I would really appreciate any help.
Thank you in advance