Adding a Compacting Drawer with 4 (2x2) instead of 3 slots, for things that have only one compaction level (e.g. Redstone: Dust -> Block).

You can put an item into the left and one into the right half, for each will be checked if there is a 'compact' block for it (if there is no block, it will check for a nugget)

so you can put 2 items with one compaction level into the space where you currently get only one.

Hm. I have considered a 1x2 version (and even a 2x2 for recipes with more than 3 tiers, although they are rare). My main concern is that the split nature of the block might be confusing.

As long as they're grey like regular compacting drawers, I don't think it would be too confusing, and is something that I'd personally love to see as the empty space drives me crazy haha

CompactDrawers adds a 1x2 Version of the Compacting Drawer.