While there is not an automatic bell footing tool, creating one manually is a straight-forward task using items from the Geometric Shapes library category.
The concrete cutout for a door can be modified on the Framing panel of its specification dialog.
One application for pony walls is a stepped foundation. The lower part of the pony wall is the concrete wall with footing, and the upper part is a framed wall. Use the Break Line edit tool in a section view to place break points and adjust the pony wall to be stepped.
Walkout basements are a type of daylight basement typically located on sloped terrain. They feature walls that are above ground at the lower end of the slope so that a door can be positioned above the terrain at that end. You will need to create sloped terrain and adjust the Building Pad Elevation and/or terrain data so that the terrain is at the appropriate height relative to the structure at both the high and low ends of the slope.
Use posts, multiple copy, and other features in Chief Architect to create a structure raised on piers.
Furred Walls are placed against the inside of a primary wall, typically an exterior wall. The inner wall should be specified as a Furred Wall on the Structure panel of the Wall Specification dialog.
When a foundation is generated based on the floor plan of Floor 1, a room on the first floor specified as either a Garage or Slab type will receive a stem wall or pier foundation with a slab floor and stem walls. If a monolithic slab foundation is generated, the room will receive a slab floor with curbs.