Free Placing of doodas with newgen

Is there a way using newgen, or anything - to place doodas freely, i mean with out them colliding each other, i hate this thing with doodas can be placed here cause there is another doodad =[ it blocks my creativity lol...for now i just used to change the pathing texture of the doodad wich is already there, but it realy annoying to change it every time i use it, is there a way like to make the editor not care if a doodad is already there?

it's not possible to place 2 doodads at exactly the same point of they have any kind of pathing texture. However, if you hold down the Shift key (at least, i think it's the Shift key) you can place doodads anywhere, except at the exact origin of another. (eg: you can not have a tree directly on top of a tree. You can however have 4 trees with a 5th in the middle, overlapping the "unwalkable" parts of the other 4.)