User interface

The main window is divided into several parts:

·	Main Toolbar û This control is situated on top of the main window. All functions of the program can be performed from the tool bar.

·	Popup menus û They are applicable to the panels of the main window The functions of editing can be performed from these menus. Click the right mouse button to open a context popup menu.

·	Local Toolbars û They are duplicate functions of popup menus. You can use them as an alternative of the popup menus.

·	Status bar û This bar is situated at the bottom of the main window. It displays some useful information and current status.