Using the Mod Studio is actually really easy, as it allows you to graphically show what you do with system inis. While I'm not able to create new models and texture them or do new effects, using what Freelancer and the mod already gave us is enough to create a neat array of new, unseen stuff. The nomad Azurite Reactor in Delta is one of the best examples, as it is not one model but a clustered bunch of models we know already from Singleplayer, like the giant rocks of Tohoku. Another example is this here, what I did test-wise:
I plan to do little secrets like this in many already existing systems, just to have people look for those things off the plane, and maybe there can be done more stuff with it later. If it's good, though.