Right now, if you want to create "compound" spot patterns like 4V12 (an 1/8" spot on top of / inside of 1/2" spot), you can do so by adding two "Spot Patterns" to your chip. However, you need to add the base color pattern first, followed by the accent color pattern. This update allows you to reorder your spot patterns after they've been created, which makes the experience much smoother and more flexible.
I've added a "Reorder Spot Patterns" button (only visible once you have two or more patterns on a chip). Once clicked, you enter a drag-and-drop reorder mode. Click "Finish Reordering" when you're done to go back to normal edit mode.