I had been wondering about the flaps for a while but, never took the trouble of asking.
Thank you for asking so I also enjoy the answers you are receiving.
Since the projects in the Showcase are shared by people at all levels, from experts to guys like me just starting, instructions are very important.
These days I have been looking at ideas for showing instructions.
I liked very much digimath's solution at
Frog Puzzle
(2009-oct-28 22:49 EDT) por
Digimath
<digimath>
Click on the red Help button and a book opens.
Press the space bar and it closes.
Inspired by this solution and with the desire of putting bilingual instructions since most of the community communicates in English and most of us in Uruguay communicate in Spanish, I came up with the solution I show at