To copy a connection defined in a structure to selected structure nodes (it must be a connection of the same type):
- In the Inspector pane, select (highlight) the connection to be copied.
- Select a structure node to which the connection should be copied.
- Click
or select Connections 
Connection Copy for Selected Bars.
Then the connection is copied with current parameters such as sections, materials, and angles of inclination.
Similarly, a connection defined manually (a stand-alone connection) can be copied. The only difference is that you do not need to select a structure node, because this connection type is not associated with a structure node.