Hi,
Creating presets his a bit difficult if you don't have the documentation.
So, once you've finish to create your parameters, your can save presets by going into '
Preview' mode, just like you did.
To create a preset you have to pin all the parameters you want to save using the little icone on the right.
Unpin it if you don't want to use an other value than the default one.

Hope this is clear
Don't hesitate to come back to me if not !