Hi! I have some tricky contextual filters logic.

Let's say I have a taxonomy set up like this:

- Food
--- Fruit
----- Bananas
----- Apples
------- Granny Smith
------- Red Delicious
----- Grapes
--- Vegetables
----- Carrots
----- Potatoes

Right now, I can be on the Fruit page and display all articles with the taxonomy "fruit", and even "bananas", "apples" (and its children), and "grapes" if I want. No problem!

However, I want to be on Fruit and display ONLY the children categories one level lower, so only "bananas", "apples", and "grapes". How do I do that? What do I have to add to the form to do that logic?

Also, let's say I'm on Vegetables and I want to display ONLY the articles with the sibling taxonomy, so "vegetables" and "fruits". How would I do that?

I've been playing with this form and options for a while and reading more about it online, but I can't seem to quite get this logic.

Thanks!