In the Message Flow editor, you can display node and connection metadata by holding the mouse pointer over a node or subflow in a message flow.
When you hold the mouse pointer over a node or subflow in the Message Flow editor, the pop-up window contains the following metadata information:
If the node or subflow has no short or long description associated with it, only the first line of text is displayed.
If the task list contains errors or warnings that are associated with the node or subflow, the error or warning information is displayed instead of the metadata information.
When you hold the mouse pointer over a connection in the Message Flow editor, hover-help is displayed, containing the names of the output and input terminals that are connected.