Thingworx - Gadget - Set a gadget title Bar Text

How can set the same TitleBarText mashup property for a Gadget to be the same as the populated when adding a gadget to a group on a Dashboard.

In the gadget mashup I am able to set the TitleBarText base on a service, but the "Add Gadget" pop up in the gadget title has "unknown".

R Resources["DashboardFunctions"].RenameDashboardItem has the option to set a name but i should specify the dashboardID and the  groupID, nevertheless, I want to be able to set it at run time for the selected  and group.