Right-click the [Download] links and ‘Save As…’. Unzip file.
Download to your samples macro folder or other folder for use for personal macros. In AutoCAD select Tools → Macro → Load Project and open the desired .dvb file. You can then enter the specified AutoCAD Command to run the macro. Optionally, after loading the project, you may select Tools → Macro → Macros, select the loaded macro, and then click on the Run button.
Macro Installation Directions
Download to the folder pointed to by the MicroStation MS_VBASEARCHDIRECTORIES variable. To launch the macro use the MicroStation keyin listed. The keyin can be attached to a function key, button, or bar menu entry.