My personal experience is that if I want to test another skin tone (for instance), I’ll just save the character, export him/her, than change the skin tone, save again and export again, then see the end results while checking the exports side by side. It’s way more convenient to play around with pics than with the soft itself anyway so well… 🙂 But that’s just me. 🙂
And that’s not much work since I’m just reloading the same file with one tiny detail changed in that case skin color.
About that reset button I DO hope we’ll ALWAYS have to click several button when there’s a danger of losing our work. : So either we have to confirm we want to quit or we have to confirm we want to reset but as a user to me, the end result feels very much the same. 🙂