thank you for the responses, I'm going to try adding them directly in because you'd think 24 would be enough... but it's not. Not if you want to show 20 3-piece outifts, plus acessories, plus group photos for mix and match options, plus close-ups to highlight any flaws. For my "single item" auctions, 24 is great, but it's not even close to what I need for an auction such as this.
But anyway, thank you again for the very helpful info!