03-20-2018, 08:18 AM
They allow temporary storage of some parameters (until you close Jux). This is mostly for storing promising settings without interrupting the flow of work, and either returning to them later, or in the case of color or lighting, quickly comparing different settings to choose which one works best. The Materials spots can also be used for copying between material slots. In the Formulas panel, the main set stores all the formula page parameters, while the second set only stores C values and can be directly stored with the K key while exploring a fractal. Generally, clicking an empty spot saves to it and clicking a full spot restores from it.