you can press D to bring up the develop module. or Hold down Ctrl+Alt/Command+Option and press a number from 1 through 5 to switch to any of the five modules.
Change the Lightroom screen mode
You can change the screen display to hide the title bar; the title bar and the menus; or the title bar, menus, and panels.
- Choose Window > Screen Mode, and then choose an option.
- When in Normal, Full Screen With Menubar, or Full Screen mode, press the F key to cycle through those three modes.
- Press Ctrl+Alt+F (Windows) or Command+Option+F (Mac OS) to switch to Normal screen mode from Full Screen With Menubar or Full Screen mode.
- Press Shift+Ctrl+F (Windows) or Shift+Command+F (Mac OS) to enter Full Screen And Hide Panels mode, which hides the title bar, menus, and panels.
- When in Full Screen And Hide Panels screen mode, press Shift-Tab and then the F key to display the panels and menu bar.
Note: Full Screen mode and Full Screen And Hide Panels mode in Mac OS hide the Dock. If you start Lightroom and do not see the Minimize, Maximize, or Close buttons for the application, press the F key once or twice until they appear.
-janelle