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The system toolbar is a set of tools for quick definition of element parameters at creation and editing time.

Following is the description of the functions of the system toolbar fields and buttons.

Layer configuration command button .

Layer name box. Displays the layer name of the model elements being created and edited.

Button for setting visibility levels of the model elements .

Level input box . This box displays the current level of the model elements. Changing levels can be done within element creation and editing commands. Clicking inside the box sets a text cursor. Type in the element level. Confirm the input by pressing <Enter> or clicking within the drawing window.

Priority input box . This box displays the current priority of the model elements. Changing priority can be done within two-dimensional element creation and editing commands.

Color selection box . This box displays the color of the element being created or edited.

These are the main items that are always present on the system toolbar. The rest of elements replace depending on the application state.

When in command waiting mode, the system toolbar contains selector controls, as follows:

Button for calling selector configuration dialog . Used for specifying exact settings of the selector and defining named selector configurations.

Button for calling named selector configuration . Brings a pull-down list of available configurations.

Quick selector setup buttons:

The buttons and help to quickly allow/disallow selection of all types of elements;

The buttons , , , , , , , и  define and edit the current set of elements allowed for selection. The pushed icons represent the elements allowed for selection. The set of buttons will be different when working in the 2D window.

Other various items may be added to the system toolbar while working with various 2D commands. For instance, a line type box appears on the system toolbar while creating lines, along with the line start and end arrow type boxes. When creating text, the font name and size boxes are displayed.