Using assisted layout for diagrams
Assisted layout helps you to align symbols while moving or resizing them. As you move or resize symbols on a diagram, dotted lines appear to guide your top, bottom, left, right, and center alignment with respect to nearby symbols.
This feature is currently available for the following diagrams:
• Class diagrams
• Requirement diagrams
• Use case diagrams
• Block definition diagrams
• Internal block diagrams
• Variant diagrams
To disable the dotted guidelines, on the Format ribbon, clear the Snap to Symbol check box. You can also use the ALT or the SHIFT key to disable the guidelines.