Use this tool to fit the entire drawing into the window.

Use this tool to zoom to a specified area:

1. Select the Zoom Selected Area tool.

2. Click on the first corner of the area.

3. Move the cursor to the second corner of the area and click again.

Use this tool to zoom while you are moving your mouse:

1. Select the Zoom Realtime tool.

2. Move the cursor over the drawing and click the left mouse button.

3. To zoom in, drag the mouse upwards.

4. To zoom out, drag the mouse downwards.

5. Re-select Zoom Realtime to exit the tool.

Use this tool to zoom in by a factor of two (double the display size of the drawing).

Use this tool to zoom out by a factor of 0.5 (half the display size of the drawing).

Use this tool to move the drawing with your mouse:

1. Select the Pan Realtime tool.

2. Move the cursor over the drawing.

3. Click on the drawing and drag the mouse to move the drawing.

4. Re-select Pan Realtime to exit the tool.