Midjourney Can Build On Existing Text Promps Without Losing The Original Image - Can FireFly Do This

Hello,

something that I'm curious about is this, Midjourney can create an image from your text prompt and then build on that original image with extra text prompts, so can keep the original image and build upon it. It seems with FireFly that when you click "generate" again, the previous images is gone forever and it just builds another image at random.  Let's say you get an image you love, but forgot to add something to it.  Like a room with a table, but you now want that same exact image with a coffee cup on that table.... is this possible in FireFly ?  Thank you.