(Container) Loot Table Roll Spread Customization

One issue that I've run into when trying to make loot tables for chests for a custom map is that with many rolls consisting of a lot of items (10+), some rolls won't be able to fit into the chest because the first few rolls get spread throughout many slots. On the other end of the spectrum, I'll get "unnatural" spreads, such as a roll of 40 items gettings spread into stacks of 1, 1, 1, 3, and 33. I'm not sure how the default spread is calculated, but some customizability here would be nice.

e.g.:
set_spread: Would determine the amount of slots a roll can be spread across. Can be a set value, min, max, etc.
set_slot_limit: Would determine the max amount of items in one slot, similar to "limit count". In cases where this conflicts with set_spread, it would "delete" items over the limit, rather than trying to spread them out to other slots.