This plugin can be used to calculate edges and surfaces of models. Surfaces can also be selected individually. The faces of the parts can also be individually selected and can be extruded. The plugin also counts the common area of all faces selected. Areas of the faces can also be count individually. PushPull Tool allows the surfaces to be pushed out or in. This example uses push pull method. The program pushes the selected surfaces out or in to the given value. Negative values can also be given to the surfaces. The program code can be edited so that also template properties can be downloaded to the WebDialog. Or whatever the programmer wants. Ruby Api gives the designer the ability to automate the SketchUp design process. With Ruby Api, the designer can program additional add-ons so the design work is much more efficient.