There is an auto-hide feature for the HTML pane.  It would be incredibly cool if when you add the feature where the HTML pane can be sized differently for different grids (which you said in another thread is on the road map) there were also some type of an option where auto-hide could also be set to automatically expand the pane when there is content in it.  In certain grids perhaps 5% of my items have HTML content and I would like to have the HTML pane hidden except when there is info there.  Not sure if my request is practical, just a thought.