To open the Tools Palette, click the Tools icon on the toolbar, or choose Window > Tools from the main menu.
Note that drawing tools work with both fill and line styles. For example, the Irregular Polygon can create filled areas when applying fill styles and linear objects when applying line styles.
Hold the SHIFT key to maintain the aspect ratio on shapes, for example to make perfect circles and squares, and to constrain the angle on lines, wedges, and arcs.
To make the smoothest paths with the Freehand Path, make sure the View > Snap To… settings are all disabled (unchecked).