Compact Drawers
https://www.curseforge.com/minecraft/mc-mods/compactdrawers
its an addon for storage drawers, it adds ''drawers'' wich compact blocks .. so if you have f.eks. extra utilities in your server you could use a compacting drawer and put cobblestone in it and it would compact the cobblestone to compressed cobblestone and double commpressed cobblestone... this is very useful to me (becuse im a bit of a hoarder ....) 
please add