What Vue version? What you always can do is to use the "traditional" method with replication. You position the objects you want to replicate high above the terrain, replicate them as often as you want them (with the possible variations) and then use the drop down option for the whole bunch of copies you have created. Ta ta, all sit on the terrains without too much manual work. This was the method we all used before the ecosystems appeared.

One day your ship comes in - but you're at the airport.