How do I modify the colors and general scheme of a large diagram?
New Diagrams:
You can set default drawing values by selecting Options >> Default Drawing Values from the main menu.
Exisitng Diagrams:
Use the Select by Criteria tool to select all objects meeting a specific criteria then format the objects as a group.
See Select/Format Multiple Objects or Simulator Tips: Creating and Modifying System Diagrams for more information.
July 3, 2012