Hello Paul,
you are right: I actually received an answer from someone who kindly advised me to use slicers instead of comboboxes. It is a good solution, because it actually shows what I would like to accomplish, but it causes me a couple of problems:

- 1: in reality I have to manage thousands of products and honestly I think that having a huge slicer with so many buttons risks to be too much dispersive...;
- 2: I decided to give the possibility to open PDF files associated with the results of the filtered products info obtained and, if I am not mistaken, it is not possible to obtain such a function with slicers (or their own filters).

In my opinion dependant comboboxes still look like what I need, but if you have an alternative solution I'm open to anything. ��

Thank you for letting me clarify!