{*} Want to be a Developer for FeralHeart? {*}
Ah... No. Actually you can use them in object maker, I think it's the third tab. Sphere of water is an option I believe for "collisions".
Here you are: https://www.feral-heart.com/index.php?option=com_jfusion&Itemid=2&jfile=index.php&topic=6878.0