The Documentation window enables you to document any of the UML elements available in the Model Tree window. To add documentation to an element, first click the element, and then enter text in the Documentation window. This window supports the standard editing shortcuts, including Select All (Ctrl+A), Cut (Ctrl+X), Copy (Ctrl+C) and Paste (Ctrl+V).
Text inside the Documentation window can be spell-checked. To do this, right-click inside the window, and select Documentation Spelling from the context menu.
Documentation text can also be exported as comments in the generated source code, or imported from source code comments during reverse engineering. For more information, see Documenting Elements.