stack columns

[#1]

I have X1,Y1 and X2,Y2 values and I want to plot them. First, I need to stack X1 with X2 and Y1 with Y2. How can I do that? When I stack for example X1 and X2, makes a mess for Y1 and Y2. 

[#2]

You need to use the Multiple Series Stack option in the Stack Dialog.

See the documentation here.

[#3]

Thanks Jeff

[#4]

Here's how you would fill out the Stack dialog:

[#5]

Thanks Pmroz