Mass Grass Placement?

Hello, I want to place grass all over this map, but I dont wanna use a paint tool to paint them manually, I want something that just puts the grass all over the map automacially…is there a plugin or something that does that? This is not a terrian, its an imported model from 3ds max in fbx format…

The map

Please I need help!

This function is not buit in to unity. But there has been some scripts written to do this, check out this thread: http://forum.unity3d.com/threads/42216-Mass-place-grass. Or just google it there is some other stuff out there. Also I am going to request this feature on the feedback page, I think a lot of peaple would use this. They already have mass placing for trees, so why not grass

Just posted the feature request the the feedback page, go vote for it here: http://feedback.unity3d.com/suggestions/mass-placing-for-grass-and-detail-meshes

Thanks bro but I want it not only on terrian but on imported meshes aswell

MegaScatter might be what you are looking for. http://www.west-racing.com/mf/?page_id=4853