Create an empty file and store it in directory Patterns under any name you like. Now open the file Standardpatterns. There you will see an image element for each standard pattern. Copy one of these image elements into your empty file. Now use image editing to change the pattern as you wish.

Then create object info for this image element (see Object Info). Use the automatic ID suggested by Arbortext IsoDraw. For a name, enter a term that can be used to identify the pattern. This name will subsequently appear in the pattern list.

Save the file and re-launch Arbortext IsoDraw. The pattern list now contains the patterns you have created.