The tool would work as follows:
It would place a model of choice the same way you would place a block, the model would be placed with a set rotation and it would be snapped to a grid.
Additionaly, I believe it would be interesting if the tool behaved like a paint brush, letting you place the models by just holding the mouse button as opposed to having to click every time you want to place a model.
I think it’s basically a tool which you choose any model, and then spread a certain amount of copies from the same thing, but in a randomized pattern where did anyone of them is supposed to be, just like a spray.
Along this, some stuff like grass around map could look more realistic, and less “perfectly” placed, also getting a quickier working process to do it so, like you wanna place 10 copíes from the same thing at once without having to copy and paste manually, because everything will be there in a matter of seconds.