# Keyboard Shortcuts

| Windows | Linux | OS X | Comments
Menu Bar | Alt | Toggle if Show Menu is unchecked.
Zoom In | + |
Zoom Out | - |
Zoom In | PgUp |
Zoom Out | PgDn |
Fine Zoom In | Alt + |
Fine Zoom Out | Alt - |
Larger Scale Chart | Ctrl+LeftArrowKey (or F7) | Cmd+LeftArrowKey |
Smaller Scale Chart | Ctrl+RightArrowKey (or F8) | Cmd+RightArrowKey |
Panning | Arrow keys |
Panning Slowly | Alt + Arrow keys |
Quit OCPN | Ctrl+Q | Cmd+Q |
Preferences |  | Cmd+, |
Full Screen | F11 | Ctrl+Cmd-F |
Auto Follow (on/off) | Ctrl+A (or F2) | Cmd+A |

### The List sorted by Keys

Function Keys

- F2 toggle Auto Follow on / off
- F3 toggle ENC Text.
- F4 activates the chart measure pencil. Esc Stops it
- F5 toggle Daylight, Dusk & Night mode, if built into the Chart ( “C”, Ctrl+C, Ctrl+G)
- F6 General Dimming, in steps, of the entire Screen. (except Mac OS X ) OpenGL must be off.
- F7 Larger Scale Raster Chart (Scale In) or Ctrl + Left-Arrow
- F8 Smaller Scale Raster Chart (Scale Out) or Ctrl + Right-Arrow
- F9 Chart Quilting . Toggle on/off
- F11 toggle Full Screen view.
- F12 toggle Chart Outlines
- SHIFT + F6 reverses the dimming.

Hot Keys or Shortcut Keys

- C change color scheme -new similar to Ctrl+C, Ctrl+G and F5
- L toggle ENC Lights on/off. “Mariners Standard” display category.
- O toggle Chart Outlines. or F12
- T toggle ENC Text or F3
- S toggle ENC soundings.
- A toggle bottom features, useful when anchoring. “Mariners Standard” Anchorage area & Anchor berth display category.
- D toggle Detail Slider (ENC & CM93). Hide only works, if the slider lost focus.
- M toggle Measure Tool F4
- Q toggle Chart Quilting
- + Zoom In
- - Zoom Out

Alt Keys

- Alt. Toggles Menu Bar on/off of Show menu is not checked.
- Alt + Arrow Keys. Moves the chart view in very small steps.
- Alt + “+“ for fine scale zooming in.
- Alt + ”-“ for fine scale zooming out.

Control Keys

- Ctrl + scroll wheel, zooming in/out in small steps
- Ctrl + Left-Arrow-Key Larger Scale Chart (Scale In) (F7)
- Ctrl + Right-Arrow-Key Smaller Scale Chart (Scale Out) (F8)
- Ctrl + A Auto Follow
- Ctrl + B toggle the Chart Bar.
- Ctrl + C Change color scheme - new similar to Ctrl+G, “C” and (F5)
- Ctrl + G* cycles through green, red and normal screen.
- Ctrl + I toggle small dialog, containing GPS status & Course/Up North Up Icons, on/off.
- Ctrl + M Drops Marker at current cursor position.
- Ctrl + N Activate next waypoint in an active route.
- Ctrl + O Drops Marker at current ownship position. (or Spacebar)
- Ctrl + Q Quits OpenCPN
- Ctrl + R Starts the Routing tool. Esc ends creating route.
- Ctrl + Y Redo Mark/waypoint create, move or delete.
- Ctrl + Z Undo Mark/waypoint create, move or delete.
- Ctrl + , the option Window is displayed.

Numerical Keys

- Keyboard number keys 0,1,2,…9 Changes view between the first 10 chart groups, if available.

Other Keys and Clicks

- Keyboard Arrow Keys. Moves the chart view.
- Left clicking on a chart, centers the chart on that point.
- Double clicking a vector chart, displays all info for that point (exception below).
- When the cursor becomes a green arrow, clicking pans in the direction od the arrow.
- Double clicking on an AIS target, displays the target query dialog.
- Double clicking on a mark or waypoint, displays the Mark Properties Dialog
- Double clicking on a route or track, displays the Route/Track Properties Dialog
- Right clicking on any chart, access a context sensitive menu.
- Esc ends the process of route creation or stops the measure pencil.
- Right Mouse click on chart View center lat & long
- Left Mouse click on chart moves to center of view (Touchscreen interface becomes a “Hand”)

Scroll Wheel

- Scroll Wheel, zooming in/out
- Alt + scroll wheel, zooming in/out in small steps.

Cursor

- When the cursor becomes a green arrow, clicking pans in the direction of the arrow.

—-

* Ctrl-G Works on some Windows systems (depending on graphic driver)

* MAC Cmd+A overrides standard “Select all text in current text box”, might possibly be able to change to Ctrl+Cmd+A in next version.

* Spacebar Drops Marker at current GPS position NOTE: This must be enabled by manual edit of the opencpn.ini file. [Settings] …”SpaceDropMark=1”, to activate this feature. [Settings] …“SpaceDropMark=0” deactivates the feature.

NOTE: This list may not be completely detailed and correct for now, but it does try to establish all the shortcuts available.

We may need to add some things to Caesar's Functional and tabular list to make it more complete. Please contribute ideas and corrections/improvements!