Parallel Plot > Ribbon / River Plot > Change Size with Each X Category?

[#1]

Hi JMP Community

Is it possible in Graph Builder > Parallel Plot > Ribbon/River Plot to assign a different Size value for each X axis category?

In the example below (see also table attached), I can easily set the Size to one column but it would be greatly advantageous to be able to set different size values for the DATA1 and DATA2. 

Thank you for your input.

Best,

TS

[#2]

Of note: the official name for this type of graph is "sankey diagram"

[#3]

Perhaps you can synthesize a new variable for the Size role from the DATA1 and DATA2 variables.

[#4]

Hi Mark,

Thanks for your feedback. This is indeed a possible work around but it would still assign one size per ribbon along the X categories. I'm looking for an approach that would allow me to set a starting size and an ending size for each ribbon.
Best,
TS