I just uploaded a minor update to the HeroMachine 3 Alpha. First, I've introduced a "Current Layer" indicator in the Layering box (Transform tab) showing which layer the current item is on. It should update automatically as you raise or lower the current item's layer.
Second, I've added a "minimize" button to the "view" toolbar just below the character creation canvas:
It's a little hard to see, which I may tweak down the line, but clicking it hides the view toolbar, leaving just the button. So now you can have the entire left side of the screen for character viewing.
I want to thank Worf for pointing out this problem -- the toolbar was hiding the very bottom of the illustration, so if you wanted to do a screen capture you'd lose that bottom portion. Hopefully this will resolve that issue.