Change icons in gridpanel dynamically

Hi,

I came to know from following that it is not possible to use CycleButton in Gridpanel.

http://forums.ext.net/showthread.php...n-in-gridpanel



Okay. I know it should be possible to use SplitCommand in Gridpanel. I want to use Gridpanel with splitcommand as shown in the attached image.

My question is how can I set the corresponding icon of the menu command as the user select the item.

I will be very thankful for a positive reply.

Thanks.