I would like to handle all world protection through PS if that is possible. A list of blocktypes that I want to allow people to break is much easier than a list of opposite, all the ones they cannot.

Does this make sense?

Use the bypass-blocks list and set the settings.prevent-place-everywhere and settings.prevent-destroy-everywhere for your world.

Oh, obviously. Now I know it's too late to be doing this. It.. I already did .. thanks. Hah

You can also add the allow-place and allow-break flags to a field, which will allow players to bypass the prevent-place-everywhere and prevent-destroy-everywhere inside the fields.

I'm talking about complete world coverage. I only want select blocks to be unprotected on the whole server, which will be within grief-revert (gathering nodes) and city/safe fields (for cities, yes). Is this possible?