Basically it's as follows...

You want to place 3 different trees in groups, to create a more realistic forest. You select each tree in the (new) "Entity Picker". Once you do that, you use the "Group Brush" to spray them all over your area. There are options to turn on/off the rotation and scale randomly, as you "spray" them.

You can pick up to "X" number of entities for each group you assign to the "Group Brush". Perhaps you can even save individual "Group Brushes", to use later.

This will also work with multiple grass/plant/flower types, as well as rocks and boulders.

Of course, you could also use this with debris, in an apocalyptic scenario. I believe this would GREATLY speed up level design, and give a more natural look to levels.

Any thoughts on this?

Great idea!!

You should also have a slider (or some other mechanism) that would allow you to change the fill "amount" (for example; it would go from 2 to 100 items in a single click). There should also be something in place to assure that entities won't overlap one another.

I also had this great idea in mind while creating a scenery with grass plants and trees.
It would be great to create a big forest
I hope Lee will take this up!!

Greetings