Understand the priority of steel elements in a connection and learn how to change their order.
In a steel connection, there is one element that is considered primary into which secondary elements connect.
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 Primary elements.
 Primary elements.
 Secondary elements.
 Secondary elements. 
When you select a connection, the generic connection symbol displays the primary element as a filled circle. The secondary elements display as numbered circles. The numbers specify further order in the connection. This information is required to correctly generate some detailed connections.

