move the curve on a graph

HI!
 
With my program in the attachement i can compare several curves on the graph. On the next step i want to move the curves on the graph, without the first curve, because this curve should be date reference-curve. I want to compare the other curves with the first curve!
To move the curves on the graph i placed four buttons to move the curve left, right, up and down.
 
I tried several solutions but when i tried to move the curve on the graph, no gurve was shown on the graph or nothing happened.
 
I hope somebody could help me, please???
 
Best regards,
 
PETER
 
 
 
 


program.zip:
http://forums.ni.com/attachments/ni/170/135024/1/program.zip
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