The limits of modding

Hi, everyone!
I recently decided to go back to modding Democracy 3 (I hope this community is not dead yet) and I was thinking about what can be done with modding and what not.
I have a few questions:

Thanks for your time!

I was similarly interested on whether it is possible to mod voter types and pressure groups, as I’m interested in making my own for a cyberpunk mod.

Would love to be able to do this. I would also like the ability to edit/delete existing policies