1. Add block merging. This would make custom furniture creation much easier.
   [Example] This chair I made is 4 blocks in total. This just creates frustration when I want to move it.
   
2. Add block functionality tools. This would boost the use-cases of this mod significantly.
   [Example functions] Chair, bed, furnace, crafting table, storage.

I've had this feature request in mind too!

The user should have the option to select what is the center of the overall structure.
And there should be a limit to how large it can be until it occupies another block, just in case a weird exploit is found with it.

Survivalcraft 2, a clone of Minecraft has a interesting way of making furniture, look it up here https://survivalcraftgame.fandom.com/wiki/Furniture
The way it adds functionality to blocks is what I would like to see here.

Adding ways to build functional blocks would also help give this mod more utility/identity compared to the C&B fabric port considering little tiles has no fabric version and likely never will. Would be neat to be able to create small furniture for use with small pehkui scales using such a feature as well since I know of no other way to do so with fabric currently.