Whe you have a lot of attributes in an dimension,
you always have to scroll to the right to maintain all attributes.
But as the first column (element name) is not fixed,
the element names get out of the screen.
So you always loose the link between element and its attribute value.
Fixing the first column would make the maintenance of attributes and especially
styles and formats a lot easier ..so you would always see the element name.
Thanks a lot
JL