Command:
kbADT
The AutoCAD Architecture Palette uses Architecture Styles, Schedule Tags, Schedule Styles, Annotative Tags and Symbol Tags defined in the Projects Standards File: Projects.dws. Because Objects are referenced, and Imported when not in the active drawing, you'll always have direct access to the Projects latest Styles and Standards. The Project Standards Plug-in is set to use the Project.dws file as the file to check Standards against.
DO NOT make your own Styles: The Project Standards Checker will tell on you if you do.

This button will launch Architecture's Style Manager Dialog. If a style is selected in the tree control, the Style Manager will be filtered to that style.

This button will launch Architectures Propertyset Browser Dialog.

This button will add a Ceiling Grid Object.

This button will add a Column Grid.

If changes have been made to the Standards File while the form is opened, use this button "refresh" the Form.

This button will toggle between the Standards Drawing and showing the available styles and objects in the current drawing.
Available Architecture Objects
This tree control Groups Objects by type: i.e. Walls, Doors, Shedule Tags, etc. Expand the tree nodes to see the avvailable Standard Objects. Double click on the Object to add it to the drawing. If the style doesn't exist it will be automatically imported.
Preview
If there is an available preview it will be displayed when the object is selected in the tree control.