multiple set of category

Hi,

i am trying to have multiple set of category, instead of having a long list of category.

the attach image is showing how i try to set them and what is the display result i prefer.

i understand that the value is categoryID||categorylabel , i set it correctly.
i am able to make this works for other custom field but not category. when you check on the “coffee” category, it return nothing.

how should i set it correctly?