If I buy and install Supernatural, can I disable the supernatural aspects until I feel like using them?

[tripecac]

I've got all the Sims 3 expansions except Supernatural and Into the Future; I skipped those two because I am trying to stick to "realistic" game play for now. However, with the current 60% off sale, now seems a good time to buy Supernatural (for $7.99). I'm using the Origin version of Sims 3, so I would need to transfer Steam's Supernatural key to Origin, and then install Supernatural on Origin to make sure the Steam-to-Origin key transfer works. If it does, I might pick up some stuff packs. Therefore, if I buy Supernatural, I'd like to immediately install it.

However, I don't want any supernatural events or characters in my current games. Or in any new games I create, until I feel like trying out the supernatural elements.

So the question is this:

If I buy Supernatural, is there a way to disable supernatural events or characters, or anything else that could make my games feel unrealistic? Or is uninstalling Supernatural the only way to turn them off?

Thanks!

[Klapaucius]

You get options like this:

http://answers.ea.com/t5/image/serverpage/image-id/2103iC5411A4C7D0A3343/image-size/original?v=mpbl-1&px=-1

Yes you can control it. Also, to prevent zombies and stuff from appearing, you can disable the moon phases by changing it to something other than full moons since a lot of weird supernatural stuff happens on a full moon. Not sure exactly how effective these options are, but I turn them off and it feels as if I do not have the expansion on even though I do.

Note that these options stop the creation and spreading of NEW people. So if you already have a vampire walking around, he will still be there whether you uncheck the option or not. But so far it seems to keep the game pretty realistic.

[tripecac]

Thanks!