As of present; there are two layers at which sprites are drawn that cannot be drawn to via script. These are between Layers 2 and 3, where most sprites are drawn, and Layers 4 and 5, where overhead sprites are drawn.
It would be greatly appreciated if these layers can be drawn to for various reasons. The most important being draws to sprites that don't involve tangling with Layers 2 or 3, both of which can be affected by negative layer draws. Its also helpful for when dealing with push blocks - Draws to Layer 2 draw underneath push blocks whereas draws to Layer 3 are drawn over everything else on Layer 3. I'm also asking for the ability to draw between Layers 4 and 5 for consistency reasons as well as drawing over overhead sprites as well.