I don’t know. Or rather I haven’t tried. I would do an experiment and find out.
At the same time, I am not sure why I would want that for the moment. The data in a data table isn’t a database, it is examples needed for a specific scenario. A potential complex system with nested values seems a bit risky to me. Chances are that you introduce problems that way. It is probably better to be dead simple and therefore a bit unsophisticated.