====== Main window ======

A typical layout of the main window is as follows.

{{ main_window.png?nolink |}}

**Editor** panel occupies the central area of the window. Here the models are displayed for editing and analysis. The following shortcuts are used to navigate the model view:
  * Use //left mouse button// or <key>Left</key>, <key>Up</key>, <key>Right</key>, <key>Down</key> to move selected elements of the graph model.
  * Scroll the mouse wheel forward to zooms in and backward to zoom out. Alternatively press <key>+</key> to zoom in and <key>Minus</key> to zoom out.
  * Use the //middle mouse button// or <key>Ctrl</key>+//right mouse button//  or <key>Ctrl-Left</key>, <key>Up</key>, <key>Right</key>, <key>Down</key> to pan the view.

**[[main_menu|Main menu]]** groups all the actions available for the current graph model; many of them are accessible via keyboard shortcuts. **[[global_tools|Global tools]]** toolbar at the top edge accumulates frequently used actions. 

**[[property_editor|Property editor]]** is located at the right side of the window and is used for displaying and modifying the properties of the selected graph elements.

**[[model_tools|Model tools]]** and **[[tool_controls|Tool controls]]** toolbars are located on the left side. Some tools require more spacious panel to display additional information -- such **Tool controls** panel appears as at the right side, instead (or in addition to) the **Property editor**.

The bottom panel is reserved for the following tabs:
  * **Output** - this is to provide information on the currently executed task.
  * **Problems** - this is to report errors and exceptions.
  * **Tasks** - here the progress of the currently run tasks can be monitored.
  * **Javascript** - this is console for scripting bulk actions in Javascript language (for experienced users only).

**Workspace** window is in the bottom-right corner. The work entries can be organised in workspaces to simplify the operations on multiple related graph models and access them as a single object. The works that have been saved into a file are grouped under the //External//  branch of the workspace tree. An asterisk next to the work name indicates it has unsaved changes.

The layout of toolbars, panels and tabs can be re-arranged - just drag-and-drop them in a new location, remove it from the layout or restore them via //View->Toolbars// and //View->Windows// menu. The default layout can be restored via //View->Reset UI layout// menu item.