Nope. I personally think it would be a waste of time. But fruitflies have been experimented on for hundreds of years. I'm sure that some evolutionist must have tried this. The fact that there's not a whole lot of fruitflies turning into something other than fruitflies should speak volumes.
Alright: since you can't actually point to an example and say "well, it's been tried, but it didn't work", then I'll point you toward examples of this actually having been done: Look at all of the breeds of dogs that have been created by man by selective breeding, where a specific desirable trait (similar to the ability to get food in every deeper water) has been breed into a dog.