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Custom connections can be used to connect a main part(1) part that exists in a building object and that determines the position number for the assembly or cast unit and the direction of assembly or cast unit drawings
(1) Main part can be an assembly main part or a cast unit main part.
(2) input part that the user selects first when creating a component
(2) Connections and details always have a component main part.
to up to 30 secondary parts. The connection is made between the main part and the ends of the secondary parts. The following images show some examples of custom connections: