[Suggestion] Compressed blocks, as seen in Extra Utilities

[powerboat9]

Would make storing large quantities of building blocks more efficient.

[Kan18]

Just store your stuff in ender storages and get 110592 free slots!

Even without ender storages, current switchcraft storage solutions (a bunch of diamond barrels or shulker boxes) are relatively cheap nowadays and almost always sufficient enough to store enough building blocks for large projects, unless you're covering the entire map

[scmcgowen]

Plus using Hopper.lua can let you have an ender storage that links to a larger inventory (such as a bunch of Diamond barrels