More blueprints for dimension

[VozikCZE]

Hey! If someone wants to have more islands per one land, he must create really big blueprint - and this takes a really long time to create. Then if player creates island, it must paste blueprint with a lot of air(or another blocks for caveblock etc.), which took some time.

So my idea is add ability to paste more blueprints in one dimension. Positioning of these blueprints can be done by relative coordinates from middle of main island.

For example:

blueprints:
  bonus-island:
    offset-x: -50
    offset-y: 10
    offset-z: -20