Hello! I'm trying learn how to use ComfyUI and I'm struggling to find a good starting point. I've set upa simple workflowwith model+refiner+lora and it works (I think). Now I want to learn how to add elements and I'm not sure how. Is inpainting and img2img possible with SDXL right now and if so, how do I learn how to set up a separate workflow for both? Is there some sort of "put this noodle here and this one there" kinda thing going on?