I am aware of this possibility through adding a column. However my challenge with the actual dataset is I cannot create the additional column of having Actaul/allocated as string values as that would entail duplicating 120 other dimensions and measures (the sample data I shared was truncated) twice which doesnt shape out logically for all of them.
Is there a possibility of creating the chart type with the assumption that the no. of line items (in effect no. of rows for Tableau Dataset) would remain as is.
Hope you understand my fix.
Look forward to hearing from you.