How to display products attached to two categories at once in Modx revo?

Question

MODX

The bottom line is that I need to display certain products above others in categories. These same products are attached to two categories at once. A crutch was invented in the form of a snippet output first of these goods, and then the rest. But if there is an idea better. Tell. The stopper came out in the fact that the parents parameter in msProducts, as I understand it, displays all products from the listed categories, but you need to display products that belong to both the current category and the one that I specify manually, for example, with id 15. How can this be implemented?