The following objects in AutoCAD Architecture 2022 toolset can have custom components based on polylines:
Polyline-based components of an object can be edited in place. During the edit-in-place session, the selected polyline is isolated for editing so that you can perform changes on its shape, such as grip-editing or adding and removing vertex points.
Viewing Edit in Place wall endcap grips
You can modify the polyline-based components of a wall either in two-dimensional (2D) plan views or in three-dimensional (3D) model views.
When you edit a component in a 3D view, the UCS is aligned to the component, so that you can easily add or remove vertices and grip-edit the component.
The commands for editing polyline-based objects vary, depending on the component type. For example, a wall endcap has commands for adding and removing vertices and hiding and replacing endcap components; a wall roof line or floor line has commands for adding gables and steps and projecting the roof and floor lines to a polyline. For instructions on how to assign and edit a polyline-based object component in place, see the following locations: