→Editor

An editor displays the content of an →object that you can edit. Default display is done in the editor area, the object type determines which editor is used for display. Example: An ST-object is displayed in the ST-editor (see "Views and editors" for other editors).
Any number of editors can be open at the same time, but only one can be active (unless there is an active →view). →Menu bar and →toolbar provide operations you can select for the active editor within the opened →perspective. An asterisk (*) left of the object name within the editor tab indicates that an editor has unsaved changes.