To what I understand, and I might be wrong cause I haven't messed with dimension building much yet, you'll what your dimlets in this order for Yellorium Oceans :
[Material - None] [Liquid - Yellorium] [Terrain - Normal] [Controller - Single] [Biome - Ocean]
As to the removing dimensions thing, I'm not quite sure, sorry =(
A reply from Caigan himself, yay, as I said loving the pack. I'll try as you suggested and edit this with my results for future reference if others are curious. Thanks for the reply