Hey there, and welcome! Just to be sure, you're looking to create a page with products that fit both categories on it, without users having to click through anything?
If that's the case, you have a few options. You can always set such products into their own separate category, which can give you a bit of fine control. On the other hand, you might want to look into using the Product element improvements to simply place them all front and center on the page.
