Kelsmore, pick the data type of the data you want to show. If the data isn't in a complex data type, you can't show it in a grid. But it's really easy to get it into a CDT if you need to.
For example, if you were dealing with the "User" CDT, once you pick that data type the columns in your grid are labeled by the properties of the data type. The rows, in this case, would be user instances.
This explains why "Text" isn't an available data type in the component; text is simple so it would have only one row and what's the point of using the grid then?
Does this help?