| Deletions are marked like this. | Additions are marked like this. |
| Line 2: | Line 2: |
| [[BR]] | <<BR>> |
| Line 4: | Line 4: |
| [[BR]] | <<BR>> |
| Line 6: | Line 6: |
| [[BR]] | <<BR>> |
| Line 11: | Line 11: |
| [[BR]] | <<BR>> |
| Line 13: | Line 13: |
| [[BR]] | <<BR>> |
Mouse Clicks
Button 1: Sets the cursor, drawing it in the new location, and marks the clicked vertex.
Button 2: Sets the cursor without drawing it in the new location and unmarks the clicked vertex.
Button 3: Clears marked vertices.
Mouse Controls for Zooming
Control+Button 1: Zooms in, doubling the zoom level
Control+Button 3: Zooms out, halving the zoom level