Hi, David.

I'm afraid that that's not possible. The reason is that if you could assign multiple name-binds-to to columns that these would point to multiple cells in you Excel sheet, when reading a row.

Suppose you have:
P_MinVolumeSalesChannel(i_Product,i_DemandTerminal,i_Period).
Lets say that i_Product and i_DemandTerminal are excel columns A and B. Then you could make a regex selecting columns C, D and E for i_Period. If you take a value for P_MinVolumeSalesChannel, then the corresponding values for i_Product and i_DemandTerminal can be found horizontally in column A and B. Vertically going up you can find the value for i_Period as the column name, and then we have a complete tuple for the value of the parameter.

Suppose we introduce i_SalesChannel:
P_MinVolumeSalesChannel(i_Product,i_DemandTerminal,i_Period,i_SalesChannel).
If we create a regex selecting columns F, G and H then we could find the corresponding value by going up. However, we cannot find a corresponding value for i_Period because then we should be in column C, D or E.

Since we go up for name-binds-to to use the column name, we can only have one name-binds-to per column.