While using the rake to raise the terrain (right click), I noticed it is possible to fill holes and straighten 'jagged' border, but it seems impossible to complete a shape once all the jags are rectified. For instance, assuming I managed to have a 'hill' (say, just one block high) of this shape:
there seems to be no way to complete the rectangle raising the missing corner. Did I overlook something? Is it a known limitation? Is it by design?
Thanks, M.