Is your feature request related to a problem? Please describe.

Without the option to fix a rotation it is next to impossible to create bo4's that involve the direction of the sun or any bo4 that involves directional information (e.g. dungeon mazes with directives in books)

Describe the solution you'd like

A setting to fix the rotation.

Describe alternatives you've considered

placing biomes in a certain order to lock the object rotation. Theoretically due to the plotter plotting in rectangular shapes the structure would however still be able to flip on 1 axis

Added for 0.0.19