In modpacks, I generally like to use drawers as my main source of storage. Within automation modpacks (Monifactory for example), there are times when even the downgrade to a single stack is still slightly too much capacity - it'd be nice to have the option to limit down to 16 or 32 in the 1x1 drawers.

The addition of two division upgrades would be a really nice inclusion that allow for item/fluid storage within a drawer to be cut by a half or a quarter rather than just a set stack size.

That has already been a thing for a while now - try looking for "stack downgrade" you have muliple that you can combine to get exact count that you want.