Synergy Repository elements not getting idenified in RTC Eclipse Client

Hi,

 I have deployed RTC - Synergy integration plugin into RTC Eclipse client. I am able to connect to Synergy projects through Synergy Repository view in RTC Client.

 I need to develop some custom extensions while selecting certain synergy elements (in Synergy Repository). And to do this, I need to get the handle of the Selected element.

I am implementing 'IWorkbenchWindowActionDelegate' interface for this activity. But some how not able to retrieve the selected element (in Synergy Repository). ISelection returns ' <empty selection>.

 If any one has done similar implementation earlier, please share your thoughts.

Regards
Guru