A variation is a snapshot of widget values
And when Widgets are mapped to parameters of a plugin - in this case the drawbars -
the widgets set the parameter to the value of the widget.
For blue 3 you have a good rackspace with widgets.
I would to this:
Select variation “Whiter Shade” and in Blue 3 choose the correct preset
The widgets get the values of the drawbar - perfect
Select variation “Jimmy” and again select your preset.
Now when you go back to variation “Whiter Shader” and open Blue 3 you will notice that the preset name in Blue 3 is not the same as when you previous selected you preset.
But that does not matter as the widgets are recalling the drawbar settings !
Hope I could explain.
When you use a different plugin, for example Omnisphere, then the different sounds could be to complex to be recalled by widget values - Omnisphere has some hundred parameters !
In this case just build a rackspacee for each combination if sounds / plugins you need.