The default key bindings:
Windows, Linux:
- Ctrl+Alt+O: Preview Markup in Browser.
- Ctrl+Alt+X: Export Markup as HTML.
- Ctrl+Alt+C: Copy Markup as HTML.
OSX:
- ⌘+⌥+O: Preview Markup in Browser.
- ⌘+⌥+X: Export Markup as HTML.
- Ctrl+Alt+C: Copy Markup as HTML.