This feature is cool because when your computer has not enough RAM you can choose to work on data samples. Then you could later choose to run your job on an easymorph server for example.
Well it could be a “way of working” to do that. I’ve already seen other tools doing that.
So why not this feature : enable by one quick option to force every datasource to use the “top n” feature with a number to parameter. Easymorph would be in a “sample” mode. And you could turn it off. Isn’t it just an update on the xml content ? I don’t see it like a hard thing to code but i may be wrong.