The Bridge > Bridge Objects panel has the following
Bridge Object expand arrow. Click this arrow in the lower right-hand corner of the panel to display the Define Bridge Objects form. That form will list the various Bridge Objects defined in the model. It can also be used to add, modify, or delete a bridge object.
Bridge Object drop-down list with associated New, Copy, Modify, and Delete commands
New command. Click this button to display the Bridge Object Data form. Use that form to define a new Bridge Object.
Copy command. Select a property definition from the Bridge Object drop-down list to display the Bridge Object Data form "pre-loaded" with the parameters of the selected Bridge Object. This adds a new bridge Object to the model.
Modify command. Select a property from the Current Bridge Object drop-down list. Click this command to display the form for the selected type of property; use the form to modify the property definition as necessary.
Delete command. Click this command to delete the definition identified in the Current Bridge Object drop-down list.
Spans command. Click the command to display the Bridge Object Span Assignments form.
Span Items command with Diaphragms, Hinges, and User Points subcommands, which can be used to display the Bridge Object In-Span Cross Diaphragm Assignments form, the Bridge Object Hinge Assignments form, and the Bridge Object Discretiazation Points Assignments form.
Superelevation command. Click this command to display the Bridge Object Superelevation Assignment form.
Prestress Tendons command. Click this command to display the Assign Prestress Tendons form.
Girder Rebar command. Click this command to display the Bridge Girder Reinforcement Layout form. Use this form specify materials and locations for rebar.
Load command with Point Load, Line Load, Area Load and Temperature Load subcommands. Use these subcommands to display the Point Load Assignments form, Line Load Assignments form, Area Load Assignments form, and Assign Bridge Temperature Loads form. Use these forms to load the Bridge Object.
Groups command. Click the command to display the Define Bridge Groups form; use that form to access the Bridge Construction Groups Definition form. Use that form to specify groups for staged construction analysis.
Bridge Object expand arrow in the lower right-hand corner of the Bridge Objects panel. Click this arrow to display the Define Bridge Objects form, with Add New Bridge Object and Add copy of Bridge Object buttons that display the Bridge Object Data form; use that form to add a new Bridge Object definition to the model. The Define Bridge Objects form also has Modify/Show Bridge Object and Delete Bridge Object buttons to modify or delete a Bridge Object definition.