The ability to use a shorter name for the column name - I have @fields.SomeReallyLongFieldName and it's a binary 0/1 value. It'd be nice to be able to make a shorter view there so it doesn't take up so much space.

The ability to on mouseover overlay another field of data. As an example, I have an ip address in one field and the resolved hostname in another. I'd like to make it so if you mouse over the IP address, you can view the hostname or vice versa.