Tilo Wuensche

Thank you for using Origin. In Origin 4.1 and 5.0 to setup your graph so that
changing the Y-axis scale in one layer changes the Y-axis scale in all other
layers you must link all the layers and then set each Y-axis link to Straight
(1 to 1). To link Layer2 to Layer1 select Layer2 by single-clicking on the
Layer2 icon (the small gray box in the upper left corner of the graph window
with the number 2 in it) and then select Format:Layer from the Origin main
menu. Next, in the Layer2 Properties dialog box select Layer1 from the Link to
drop down list box and then click the Link Axes button. In the Y Axis Link
group of the Link Axes Scales dialog box select the Straight (1 to 1) radio
button and then click OK twice. Repeat this procedure for each layer except
for Layer1. Once all layers and Y-axis scales have been linked to Layer1 in
this manner when you change the Y-axis scale of Layer1 all linked layers should
automatically update their Y-axis scales accordingly.