1. We have the following chart looking like stairs:
2. And we want to add another column(x=3) to the stack that has the same value all over the data:
Ta-dam! The stairs is broken!
3. And now it is time for some magic. Let's move the last item of the first row of the stacks right before the second item (move value of "5" after "1" within x="1"):
And we have it look the way we intended in 2 step
4) Ok, lets remove 2 stacks from the 2 step:
The stairs also looks as expected.