In our roof area, sometimes we have several basins with different roof compositions. We only make one quote for the entire roof, however, so if the materials are listed in order as a description of my steps, it will be easier to check to see if I did not forget to bid a product in one of my compositions.

If the materials are in order of categories, for example, it simplifies the verification before sending the quotation and could avoid overlooks. In addition it would give a more structured result.

We are working on the feature right now. is there a particular case why you want to classify them?

For example in order of the largest number or other parameter? Yannick Plante or the other voters:)