In 窶廨raphical view窶 nodes and folders have a title fields. To edit the content of a title field, you must activate it. This is usually done by pressing the 窶徙ption key窶 while clicking the object's icon. As soon as a title field is active, you can move around to other title fields using the arrow keys, (or Tab, Shift-Tab, Return and Shift-Return).
The content of an edited title field is entered into the model data base as soon as you deactivate the field. A field is deactivated when another field is activated. To deactivate a title field without activating another field, just press the Enter key (or alternatively the Escape key) or click with the mouse at some empty space anywhere in the window.