====== OnAirScreen Hotkeys ======

On **macOS**, use <key>Cmd</key> (⌘) instead of <key>Ctrl</key>.

Complete manuals: [[onairscreen:manual-en|User Manual]] §4 · [[onairscreen:manual-de|Bedienungsanleitung]] §4 · [[oas:api|API]]

The on-screen overlay lists these shortcuts. Open it with <key>H</key> or right-click / long-click → **Hotkeys**. Close with <key>H</key>, <key>Esc</key>, or a click on the dimmed background. Other main-window hotkeys are blocked while it is open; <key>Esc</key> does not quit until the overlay is closed.

===== Application =====

^ Key(s) ^ Function ^
| <key>H</key> | Show or hide the hotkey overlay |
| <key>F</key> / <key>Ctrl</key>+<key>F</key> | Toggle fullscreen |
| <key>Ctrl</key>+<key>S</key> / <key>Ctrl</key>+<key>,</key> | Open settings dialog |
| <key>Q</key> / <key>Ctrl</key>+<key>Q</key> / <key>Ctrl</key>+<key>C</key> / <key>Esc</key> | Quit OnAirScreen |
| <key>I</key> | Display IP addresses in NOW/NEXT for 10 seconds |

While quitting, the main screen shows WARN ''QUITTING ONAIRSCREEN'' until the window closes.

===== Status LEDs =====

^ Key ^ Function ^
| <key>1</key> | LED 1 on/off |
| <key>2</key> | LED 2 on/off |
| <key>3</key> | LED 3 on/off |
| <key>4</key> | LED 4 on/off |

Left-click on a status LED toggles it as well.

===== AIR timers =====

^ Key(s) ^ Function ^ Timer ^
| <key>M</key> / <key>/</key> | Start/stop | AIR1 (Microphone) |
| <key>P</key> / <key>*</key> | Start/stop | AIR2 (Phone) |
| <key>Space</key> / <key>,</key> / <key>.</key> | Start/stop | AIR3 (Radio Timer) |
| <key>S</key> | Start/stop | AIR4 (Stream Timer) |
| <key>0</key> / <key>R</key> | Reset to 0:00 | AIR3 (Radio Timer) |
| <key>Alt</key>+<key>S</key> | Reset to 0:00 | AIR4 (Stream Timer) |
| <key>T</key> | Top-of-Hour countdown on/off | AIR3 |
| <key>Enter</key> / <key>Return</key> | Open timer input dialog | AIR3 |

Left-click on an AIR timer starts or stops it (same as <key>M</key> / <key>P</key> / Space / <key>S</key>). Reset, TOTH, and the timer dialog stay keyboard or remote.

===== OAS USB keyboard =====

^ Key ^ Function ^
| Display key | Toggle fullscreen |
| Calculator key | Shut down host (''shutdown_host'') |

===== Mouse =====

  * **Left-click** a LED or AIR timer: toggle (same as the matching hotkey)
  * **Double-click** an empty area of the main screen: toggle fullscreen
  * **Right-click** or **long-click**: Toggle Fullscreen, Settings, Hotkeys, Quit; when meters are enabled also Start / Stop / Reset I+LRA