Shortcuts
Keyboard and Mouse Shortcuts 
Here is a list of the most common keyboard and mouse shortcuts in Weasis. The shortcuts are divided into different categories for better understanding.
Central panel containing viewers and editors
| Shortcut | Action | 
|---|---|
| Ctrl + Tab | Select the next tab (since v4.2.1 ) | 
| Ctrl + Shift + Tab | Select the previous tab (since v4.2.1 ) | 
| Ctrl + Shift + E | Open a the docking panel list for selection | 
| Ctrl + M | Maximize/Restore the selected tab | 
| Ctrl + W | Close the tab | 
| Tab Right-click | Open the contextual menu for more options (Close Others, All, Maximize) | 
Selected view in the 2D DICOM Viewer
| Shortcut | Action | 
|---|---|
| Left Arrow | Display previous series (since v4.2.1 ) | 
| Right Arrow | Display next series (since v4.2.1 ) | 
| Page Up | Display first series (since v4.2.1 ) | 
| Page Down | Display last series (since v4.2.1 ) | 
| Ctrl + Left Arrow | Display previous study (since v4.2.1 ) | 
| Ctrl + Right Arrow | Display next study (since v4.2.1 ) | 
| Ctrl + Page Up | Display first study (since v4.2.1 ) | 
| Ctrl + Page Down | Display last study (since v4.2.1 ) | 
| Up Arrow | Display previous image (since v4.2.1 ) | 
| Down Arrow | Display next image (since v4.2.1 ) | 
| Home | Display first image (since v4.2.1 ) | 
| End | Display last image (since v4.2.1 ) | 
| Shift + Up Arrow | Go 10 images back (since v4.2.1 ) | 
| Shift + Down Arrow | Go 10 images forward (since v4.2.1 ) | 
| Ctrl + Up Arrow | Display previous patient (since v4.2.1 ) | 
| Ctrl + Down Arrow | Display next patient (since v4.2.1 ) | 
| Ctrl + Home | Display first patient (since v4.2.1 ) | 
| Ctrl + End | Display last patient (since v4.2.1 ) | 
| Tab | Go the next view when layout has more than one view | 
| Shift + Tab | Go the previous view when layout has more than one view | 
| Alt + Arrows | Move image of 5 pixels (since v4.2.1 ) | 
| Alt + Shift + Arrows | Move image of 10 pixels (since v4.2.1 ) | 
| Ctrl + Plus (+) | Zoom in (since v4.2.1 ) | 
| Ctrl + Minus (-) | Zoom out (since v4.2.1 ) | 
| Ctrl + Enter | Set zoom to best fit (since v4.2.1 ) | 
| T | Translate (pan) the image canvas | 
| W | Window / Level | 
| S | Series scroll | 
| Z | Zoom | 
| R | Rotation | 
| H | Crosshair: in multiview mode synchronizes the crosshair position to all the views (Note: Ctrl + click or Ctrl + Shift + click allows changing the Window/Level values) | 
| C | Cine Start / Stop | 
| M | Measure | 
| D | Distance measurement | 
| A | Angle measurement | 
| Y | Polyline measurement | 
| B | Textbox | 
| Q | Context menu | 
| Ctrl + Spacebar | Change to the next action | 
| Ctrl + mouse drag | Accelerate the current action | 
| Ctrl + Shift + mouse drag | Accelerate more the current action | 
| Alt + R | 90° rotation (clockwise) | 
| Alt + L | 90° rotation (counterclockwise) | 
| Alt + F | Flip horizontally (after rotation action) | 
| 0 1 2 3… | DICOM presets | 
| K | Toggle key image state | 
| Spacebar | Show/Hide all the annotations (three states) | 
| I | Show/Hide all the annotations (three states) | 
| Escape | Reset the selected view | 
| P | Print view(s) with the operating system printer | 
| Right-click | Open the contextual menu for more options | 
| Double click or F11 | Toggle fullscreen (F11 since v4.5.2 ) | 
| Drag files/directories (from the OS file manager)  | 
          Open DICOMs files | 
Selected view in the MPR Viewer
MPR view inherits the same shortcuts as the 2D viewer, with the following additional shortcuts since v4.6.0 :
| Shortcut | Action | 
|---|---|
| Alt + X | Center crosshair of the selected view | 
| Alt + C | Show/Hide the crosshair center of the selected view | 
| Alt + V | Show/Hide the crosshair of the selected view | 
| Ctrl + Alt + X | Center crosshair of all views | 
| Ctrl + Alt + C | Show/Hide the crosshair center of all views | 
| Ctrl + Alt + V | Show/Hide the crosshair of all views | 
| Ctrl + Alt + B | Change the MIP type (None/Min/Mean/Max) | 
| Alt + mouse scroll | On selected axis, increase/decrease the MIP thickness | 
DICOM explorer
| Shortcut | Action | 
|---|---|
| Ctrl + click on the thumbnail | Select multiple series | 
| Click on a thumbnail and then Shift + click on another one | Select all series between | 
| Ctrl + A | Select all the series | 
| Home or Page Up | Select the first series | 
| End or Page Down | Select the last series | 
| Up Arrow | Select previous series | 
| Down Arrow | Select next series | 
| Enter | Open the selected series in the default viewer | 
| Click + drag a thumbnail in the main view | Display a series | 
| Right-click | Open the contextual menu for more options | 
| Drag files/directories (from the OS file manager)  | 
          Open DICOMs files | 
Note
Downloading Priorities: Selecting a thumbnail gives the best priority to download.
Graphics
| Shortcut | Action | 
|---|---|
| Click on a graphic | Select a Graphics | 
| Click + mouse drag | In selection mode: select all the graphics inside the selection area. In drawing mode: draw the selected graphic shape.  | 
      
| Ctrl + A | Select all the graphics | 
| Ctrl + D | Deselect all the graphics | 
| Delete | Delete the selected graphics | 
| Shift + click on a graphic | In selection mode: add or remove a graphic to the current selection. In drawing mode: force to draw on another graphic (without shift the graphic is selected).  | 
      
| Double click | Stop adding points for polyline (also available in the context menu) | 
| Right-click | Open the contextual menu for more options | 
Tips and Tricks
Window / Level Adjustment
- Move the mouse horizontally to the right to increase the window width (reduce the perceived contrast).
 - Move the mouse vertically upwards to lower the window center (increase the perceived brightness).
Tip: Use Preferences to reverse the direction of level adjustments. 
Drawing a Segment
You can draw a segment in two ways:
- Click + Drag: Click, drag to draw, then release.
 - Click > Release > Drag: Click to start, release, drag to draw, and release again.