The viewer can display files containing multiple sources.
The viewer has two display modes, single-source and fused. In single-source mode, only the current source is shown (there is exactly one current source at any given time.) In fused mode, all active sources are shown overlaid.
| F | Switch between single-source and fused mode. |
| G | Toggle source grouping. |
| I | Switch between tri-linear and nearest-neighbor interpolation. |
| T | Toggle whether moving image is displayed warped or raw. |
| S | Show Brightness & Color dialog. |
| F6 | Show moving image panel Visibility & and Grouping dialog. |
| F7 | Show target image panel Visibility & and Grouping dialog. |
| U | Show warp visualization grid dialog. |
Using the mouse:
| Left-drag | Rotate (pan and tilt) around the point where the mouse was clicked. |
| Right-drag or Middle-drag |
Move in the xy-plane. |
| Scroll | Move along the z-axis. |
| Meta Scroll or Ctrl Shift Scroll |
Zoom in and out. |
Using the keyboard:
| Q key | Align the non-active viewer with the active viewer. |
| W key | Align the active viewer with the non-active viewer. |
| R key | Resets view to origin. |
| X / Y / Z | Select rotation axis. |
| ← / → | Rotate clockwise / counter-clockwise around the choosen rotation axis. |
| ↑ / ↓ | Zoom in / out. |
| , / . | Move forward / backward along the z-axis. |
| Shift Y or Shift A | 3d: Rotate to the xz-plane of the current source. (Look along the y-axis of the current source.) |
| Shift X | 3d: Rotate to the zy-plane of the current source. (Look along the x-axis of the current source.) 2d: Rotate clockwise to the next 90 degree rotation of the image |
| Shift Z | 3d: Rotate to the xy-plane of the current source. (Look along the z-axis of the current source.) 2d: Rotate counterclockwise to the next 90 degree rotation of the image |
Hold Shift to rotate and browse 10x faster.
Hold Ctrl to rotate and browse 10x slower.
Landmarks are placed in landmark mode which is entered by pressing and holding the space bar. A message is briefly displayed in viewer windows to indicate that you are in landmark mode.
| Space bar (press and hold) |
Enter landmark mode. |
| (Space bar) + ( mouse click ) | Place landmark point. |
| (Space bar) + ( mouse click and drag ) | Drag an existing landmark point. |
| (Space bar) + Shift + ( mouse drag ) | "Move" a point. Click to place a landmark in the moving image space, drag to move a landmark in the fixed image, release to set the fixed image landmark. |
| (Space bar) + Ctrl + ( mouse click ) | "Fix" a point. Click to place a landmark in both the fixed and moving images, at the clicked position. |
| (Space bar) + click point in table. | Clears a point's position. Next landmark-click resets position. |
| Double click point in table. | Center landmark point in viewer. |
| Ctrl Z | Undo last change to a landmark point. |
| Ctrl Y | Redo last undone change to a landmark point. |