The Structural Sections Picker is used to select a section shape for the structural element being placed. It is integrated in the Placement dialog for all Structural element types. A selection made here overrides the current Structural section defined for the selected Structural component type. You can select from a list of Recent section shapes or from the loaded catalog Library. You can also browse and load more shape category types with the available Shape Catalog.

Setting	Description
Menu	The drop down menu filters the list of shapes based on type (round, cee, angle, ell, I, tee, solid round, etc.), and displays them in the list view. By default, show all () is selected.
Search	Used to search loaded shapes by name.
Shapes List Box	Displays loaded shape classes and shapes by type. The list can be collapsed/expanded by clicking on the triangle buttons or by pressing the Collapse All, Expand Types, Expand Selected Shape Class toolbox options below.
Collapse All, Expand Types, Expand Selected Shape Class	Enabled when is selected from the menu. Used to collapse or expand the shape classes in the shapes list box.
Shape Catalog	Opens the Shape Catalog dialog where you can browse and load more shape category types.