The plot windows contain icons for changing the scales. These are triangles; the x-axis icons are in the lower left corner, and the y-axis icons are arrayed along the right edge. Clicking on one of these icons has the following effects:
| right or up | |
| button 1 | move the scale interval to the right or up |
| button 2 or Shift-button 1 | extend the right or top scale factor to the right or up |
| button 3 or Ctrl-button 1 | contract the right or top scale factor to the left or down |
| left or down | |
| button 1 | move the scale interval to the left or down |
| button 2 or Shift-button 1 | extend the left or bottom scale factor to the left or down |
| button 3 or Ctrl-button 1 | contract the left or bottom scale factor to the right or up |