After your amazing light-on, light-off, I thought "wow, now I won't have to move a sim in just for some light". I recently realized, what about animations from fountains and placeable effects? So, is that doable? Because that would be totally awesome.

Interesting idea. I have no idea how to do this, so it would definitely require some research (and maybe some luck). Not high on my priority list, I'm afraid.

It's just cool that it is on it at all.

I doubt this would be so doable. First of all, no one had translated game effects. This was one of my biggest problems once I'm not a programmer. To turn lights on or off is not exactly an effect but a change material thingie.
To turn the water of a fountain on is another problem once it works only on live mode and depends on a text file to pull an effect (that is not translated) and place it exactly on a container slot from a multi-tile object. And it deals on something that is either seen from hood view or from the neighbor lot. If you find a solution for this, well, kiss your feet. I badly need it.

Thanks, xptl297. That's helpful to know.