Currently, you can set the parameters for your images, click "Generate <X> Images", then have to wait for those images to finish generating before you can generate new images with a different prompt or parameters. It'd be a huge QoL if you could "Queue Up" your generations, where after you click "Generate <X> Images," you can change the sliders and queue up for it to generate new images with the new settings before the previous ones have even finished. It's fine if these can't generate simultaneously, but just being able to queue up a bunch of images with different settings and then leaving your PC until all of them have finished generating would save a lot of time :)