How to add Specific Column in matrix

Hi Tiger2514555 
Unfortunately, there is no option to add some categorical columns to the matrix, without making it in hierarchical form. (The logic is very similar to the Excel pivot table).
If every job has one suffix you can achieve something similar by expanding the row hierarchy and format stepped layout + switching off row subtotals :

This is not flat like in your Excel, but this is the closest option that we have.

If this post helps, then please consider Accepting it as the solution to help the other members find it more quickly

Hi Tiger2514555 
This is not going to work because your matrix is with columns ...so the suffix will appear in every column.

If this post helps, then please consider Accepting it as the solution to help the other members find it more quickly

pls try