The following hotkeys can be used on any lecture page:

Hotkey Description Hotkey Description 
v
 Reveal the next hidden word 
h
 Hides the most recently revealed word 
shift+v
 Reveals all words 
shift+h
 Hides all words

The following buttons are also present on each page:

Button Description
Hide Hides all content in the section containing that hide button
Show Shows all content in the section containing that show button
Enable/Disable Colors Switches between colored and uncolored versions of the site
Link Redirects your browser to a page displaying only the section containing that link button
Hide/Show in Tooltips When checked, hide/show will apply to the contents of tooltips