Easy Scatter is the Unity editor extension that allows to paint mesh object or prefab rather than drag and drop into your scene. You will save time and make your level design creation more intuitive and simpler. Now free download easy scatters for learning purpose.
The ideal complement to Gaia
Various alignment options, randomly Rotate, Scale, work on selection will allow to Prototype your level in minutes. Above all, make your unique scenes, in applying positioning, rotations and making random scale wherever you want