Drawing from feedback received from our clients over the duration of Version 3, we have made major changes to Version 4 to provide more shapes and more options within the shapes and more additional features to make your job easily. 'Ease of use' is our guiding principle. In Version 4 we believe we have been able to provide many additional features while maintaining the program's original simplicity for the basic user. More shapes In addition to Pipe to Pipe and Pipe to Cone, branches now include Cone to Cone, Cone to Oblique Cone, Cone to Pipe, Pipe to Oblique Cone, Rectangle to Cone, and many more. Multiple branches, with up to four pipes converging on a common intersection point. HVAC Rectangular Ducting (reducers, branches, Y's, T's). More Transitions. More Segmented bend options. Vessel End Caps (hemispherical, torispherical, semi elliptical). New Category Menu Shapes are easier to find. Provides a better foundation for continuing expansion of the system. Material Thickness. Thickness setting is now more conveniently located. Improved Manual Dimensioning New horizontal, vertical and offset dimensions. Improved Automatic Dimensioning. True lengths with separate Step-off dimensions around the top and base.