ListGrid horizontal DrawAheadRatio?

Hello,

There is ListGrid.setDrawAheadRatio() that works for vertical draw ahead ratio. Is there similar method that will affect horizontal draw ahead ratio?
I use a ListGrid with 200 columns, so it would be nice to draw only those which are visible.

SmartGWT v8.3p_2013-02-08/LGPL Development Only (built 2013-02-08)

Regards,
Adam