This is a simple build saver and loader that is done with structure blocks.
There are 2 sections redstone (Made out of sandstone) and regular building (Made out of grass)
Each sections has different sized plots:

• 8 8x8 Plots
• 4 16x16 Plots
• 4 32x32 Plots
• 4 64x64 Plots

The plots are raised 60 blocks so that you can build down if needed.
I recommend keeping one of each plot empty so that you can reset other plots
I also recommend turning of natural mob spawning.