like another page in the game, that give you the tools to create an element: solid/liquid/solid-with-physics/canpassthrough-yesno, color, viscosity, glow, behavior. the behavior is a list with all elements, like if i choose a red glowing solid material and i choose the behavior of sponge my element would absorb water (it would also be very cool if we could choose all the behaviors in a group that you could select multiple and differents behaviors, and when you open the list of the other elements behavior youl find everything of each element, like wood turns on fire quickly, or the plants that can  be on fire but also has the growing behavior)

and the heat points would ve like an invisble fixed point that  heat up (or cool down) any elements based on user information