Well now you can!
Using the block shifter you can toggle blocks between positions anytime you want.
It even works with chests, other mods machines or anything you can think of!
Using a tagged Ender Tag, right click on the Block Shifter.
When it recives a redstone signal it will teleport any blocks that are on top of it to the position tagged on the Ender Tag!
To teleport the block back simply turn the redstone signal off!
You can repeat that as many times as you want.
To override the stored coordinates simply right-click with another Ender Tag, or break and re-place the block.