Nozzle change parameter in Creality Slicer

Hello, I have an ender 3 S1 pro and I work with creality slicer. I want to change the nozzle to a 02 or 06 and the program won’t let me change this parameter
Do you know how I can do it?
thank you

Printer settings
Extruder 1
Nozzle diameter parameter change 0.4 to 0.2