I wand mode where elements have they own gravity depending on their mass and move curve like a planets around some STAR element which not move, and interact together.
There is a simple idea. One element like BHOL (but with lesser gravity) what not move at all, and one element what moves, but have its own gravity too.
This isn't possible to make. Solids in tpt can't possibly move around, there is no way. As much as you can imagine a ball of BHOL moving in circles, it just wouldn't work code-wise, since there is no way to move a large ball of something accurately and handle collisions, pressure, and all the other many reactions tpt has.
Maybe possible to make one big not solid particle? F.E. it will be 50x50 pixels, but one particle. Or one common particle with some big glowing effect.