Keyboard shortcuts
The following keyboard shortcuts help you navigate and work efficiently in ReasLab. All shortcuts adapt to macOS (Cmd) and Windows/Linux (Ctrl) modifiers.
Global navigation
Cmd/Ctrl + K: Open command paletteCmd/Ctrl + Shift + E: Toggle file explorerCmd/Ctrl + F: Open in-file searchCmd/Ctrl + Shift + F: Open project-wide searchCmd/Ctrl + Shift + Space: Toggle symbols palette
Panel management
Cmd/Ctrl + B: Toggle left sidebarCmd/Ctrl + J: Toggle right sidebar
File operations
F2: Rename file or folderAlt/Option + N: Create new fileCmd/Ctrl + Alt/Option + N: Create new folderDel: Delete selected file or folder
Tab management
Alt/Option + W: Close current tabCmd/Ctrl + Alt/Option + W: Close all tabsAlt/Option + Shift + W: Close current project
Editor appearance
Cmd/Ctrl + Shift + .: Increase font sizeCmd/Ctrl + Shift + ,: Decrease font size
Command palette

The command palette provides quick access to actions, snippets, and Lean utilities without leaving the keyboard.
Open the palette
- Press
Cmd/Ctrl + Kto open the palette anywhere in the workspace. - Type to filter commands; use the arrow keys to navigate results.
- Hit
Enterto run the selected action.
Common commands
- File operations: Create, rename, delete files and folders
- Panel toggles: Show or hide file tree, search, and Infoview panels
- Navigation: Jump to files, symbols, and definitions
- Search: Access different search modes (text, semantic, project-wide)
- Lean utilities: Insert symbols, access tactic templates, manage proofs
Use the command palette for additional context-aware actions and quick navigation throughout the workspace.