You can either modify shapes directly in the stencil they already exist in or you can create a new stencil. Either way, always copy and paste the existing shape you wish to modify in case you mess up. In this example I will create both the input and output units for the Niles ES1 for use on a plan page type in Visio based off an existing SI 5 plate shape.
When you drag the shapes to a drawing page you will be prompted to pick a product from your database to add to the Project DataMatrix (PDM).
Make sure you make backups of any stencil that you create in case you ever uninstall and re-install SI 5. In order to share with other SI 5 users, they will need to copy the stencil you created into their : C:Documents and SettingsAll UsersApplication DataD-ToolsSI5VisualizationsStencils folder on their machine (Vista path is C:ProgramDataD-ToolsSI5 VisualizationsStencils).
Note: If you can’t find the folder referenced above, that is because some of the folders are hidden. To change the settings on your machine to show hidden folders, open My Computer and then select Tools->Folder Options. Click the View tab and check the “Show hidden files…” radio button. While you are here, you may want to uncheck the “Hide extensions for…” option.