Recent card, display multiple category ?

[cfrancois]

We use recent card, but IFAK we succeed to show either all categories or only one category, but not the #1 and #2 (etc.) categories.

We have multiple announcement categories and we would like to display them at the top on the category pages but in unique one "recent card" widget, and not multiple ones.
I searched but I didn't succeed to find how to do this.