Drawing straight lines
You use the 
button on the toolbar to draw straight lines. You can draw lines at any angle: horizontally, vertically or diagonally.
To draw a line:
- Click .
- Click on the border in the position at which you want to start the line and drag the cursor to create the line.
- Release the left mouse button when the line is the required length and angle.
- Click away from the line to deselect it.
You can move the line by selecting it and dragging it across the border, and you can change its length by selecting it and dragging its handles.
The line is given the default colour and line style. You can change these if you wish.