Filter by index

Hello to all,

I am still new to Xano and I am looking for a way to sort by a field in a table for which I have used the GROUP feature.

To situate, I have a table with different products. One of the fields in this table is category which refers to another table.
On this other table, each category has an index.

I would like to use the GROUP feature to organize the response of my query by index.
Do you have any idea how I can do this?

I am attaching some screenshots so that you can understand what I have already set up.

Thanks :-)
[2022-08-23 at 06.19.09.png][2022-08-23 at 06.19.30.png][2022-08-23 at 06.19.56.png]