I apologize but I have almost always worked in the field of heavy carpentry and are little practical of thin sheets with many folds;
I asked you if it was possible to fold a sheet like that in image or if the two staggered lips create problems.
thanks to the availability.
feasible, first and then the other. when you do the one on the left you have to be careful not to go any further with the fold pulzone, otherwise leave the sign. Usually the folds are obtained with longer tools of the sheet, in this case it is a long recovery of sheet metal with short tool. However, it is nothing transcendental.