Advancement view option [java datapacks]

I am talking about that at this moment there are only to options on seeing uncompleted advancements. You can hide them and they are not visible until completed, or you can can put them in visible, but you will be only able to view two from the completed parent advancement. It would be nice if you could change the amount of visible advancements from unlocked advancements. This could be a gamerule or done per advancement in the json file.