Load additional properties from path. Multiple instances of this
option are recognized.
.TP
-.BI "--control=" "mode"
-Primary control mode (joystick, keyboard, mouse).
-.TP
.BI "--dme=" "{nav1|nav2|frequency}"
Specify the NAV radio from which to slave the ADF or set its internal
frequency.
.B "--disable-fullscreen"
Disable fullscreen mode.
.TP
-.B "--disable-game-mode"
-Disable fullscreen game mode.
-.TP
.B "--disable-horizon-effect"
Disable celestial body growth illusion near the horizon..
.TP
.B "--disable-hud-3d"
Disable 3D HUD.
.TP
-.B "--disable-intro-music"
-Disable introduction music.
-.TP
.B "--disable-mouse-pointer"
Disable extra mouse pointer.
.TP
.B "--disable-splash-screen"
Disable splash screen.
.TP
-.B "--disable-textures"
-Disable textures.
-.TP
.B "--disable-wireframe"
Disable wireframe drawing mode.
.TP
.B "--enable-fullscreen"
Enable fullscreen mode.
.TP
-.B "--enable-game-mode"
-Enable fullscreen game mode.
-.TP
.B "--enable-horizon-effect"
Enable celestial body growth illusion near the horizon.
.TP
.B "--enable-hud-3d"
Enable 3D HUD.
.TP
-.B "--enable-intro-music"
-Enable introduction music.
-.TP
.B "--enable-mouse-pointer"
Enable extra mouse pointer (i.e. for full screen voodoo/voodoo-II
based cards.)
.B "--enable-splash-screen"
Enable splash screen.
.TP
-.B "--enable-textures"
-Enable textures.
-.TP
.B "--enable-wireframe"
Enable wireframe drawing mode.
.TP