The portlet-to-portlet Sent To option is located in the right-mouse click menu (as listed below). Hence, right-mouse click event is used to trigger the request send by the Master Portlet to the Slave portlet. It usually involves three clicks.
However, it is also possible to send the request with only one click (left-mouse click). Please follow the steps below to achieve this.
1. Edite the Master Portlet WebPart
2. Go to Master Portlet Preference
3. Un-check Display Send To menu
4. Select a Slave portlet as the Default Target Portlet (as shown below)
