How To Be Prompted to Save Sculptor Preset

I am using CSS Sculptor to create a specific template that I can use throughout my web. (Nice tool!) However, I can't seem to get it, while in the CSS Sculptor wizard process, to allow me to save what I've formulated as a Preset so that I can go back later to tweak its design. It always just generates the new page--without prompting me to save it as a Preset--which means that I cannot later reenter my tailored design via CSS Sculptor in order to make further modifications (as indicated to be necessary in other threads in this forum), which is why I want to save it as a Preset.

I have even tried just modifying some (minor) parameters in order to "trick" CSS Sculptor to think that this is not a normal layout and design and, therefore, forcing it to want to save it as a new Preset. But nothing seems to be working. I must be missing something quite elementary.

So, any advice would be greatly appreciated. Thanks in advance.