Editor preferences

You can modify the settings of the editor from the Preferences window. The preferences window is opened from the File -> Preferences menu.

General

Enable Texture Compression
Enables texture compression for all builds made from the editor.
Escape Quits Game
Shutdown a running build of your game using the Esc key.
Track Active Tab in Asset Browser
The file edited in selected tab in the Editor pane will be selected in the Asset Browser (also known as the Asset pane).
Path to custom keymap
Absolute path to a file containing custom keyboard shortcuts.
Code editor font
Name of a system installed font to use in the code editor.

Code

Custom Editor
Absolute path to an external editor. On macOS it should be the path to the executable inside the .app (eg /Applications/Atom.app/Contents/MacOS/Atom).
Open File
The pattern used by the custom editor to specify which file to open. The pattern {file} will be replaced by the filename to open.
Open File at Line
The pattern used by the custom editor to specify which file to open and on which line number. The pattern {file} will be replaced by the filename to open and {line} by the line number.

Extensions

Build Server
URL to the build server used when building a project containing native extensions.