I think what's being asked is, with the plants in freestuff here (which are in .vob format) can you use them as with the plants provided with Vue itself to generate different variations on the same plant. The answer is no, my understanding is that you have to have a plant in .veg format to do that. A .vob format plant will give you an identical copy whenever it is used, although rotating and scaling it will make the various copies look slightly different, especially at a distance.

Steve