Merge Footer columns

Is it possible to Merge columns on the footer row?

No, the grid does not support multicolumn cells or headers/footers. I can only suggest looking at this example for full width extra footer row -

http://www.activewidgets.com/javascript.forum.12543.2/composite-controls-adding-more-elements.html

Jeff,
You should also look at the post below.
It might be close to what you're looking for.

/javascript.forum.8857.12/complex-layout-colspan-rowsapn.html

BT