World Composition Problem

I am trying to piece my world together using world composition and everything is almost perfect. The problem I am having is small gaps between the landscapes, and there is no way to move them a little they jump a good distance when trying to slide them together. My question is how can I get it to let me make fine adjustments to their positions?

Landscapes snap position to component size. This is to ensure that internal landscape coordinate system will be always correct, so you can have seamless painting across landscape patches in separate sub-levels. How did you create landscapes? If you want perfectly aligned landscape patches you should import them using “Tiled landscape import”. Or create one landscape and then add adjacent patches to it using “Add Adjacent Landscape” command in world composition context menu.