Select an object to preview using the "Show Preview" action

This message appears in the preview window, when the window is open but no node was selected for the preview to be shown. For this purpose there is a show preview action located in all nodes that generates objects (ex: WorkWith node and Entity Manager node in K2BEntityServices pattern, WebFormNode in WebPanelDesigner, Prompt node in Prompt pattern, etc)

"Show Preview" action