Default settings

Do I need to setup a printer ‘profile’ (I assume that’s what it’s called) if I want to change the defaults, please?
For example, I would like to use gyroid as an infill and, usually, 3 loops as the wall thickness.
Thanks

Simple as making your changes and saving them.

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Then you can select the preset.

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Blimey, that was easy! Thank you @JonRaymond