In this drop down menu you’ll find the spellcheck tool, the source code tool, and the full screen tool.
Spellcheck
Misspelled words are not automatically showcased. The spellcheck tool edits your content for misspelled words. Words that are incorrect are indicated with a red line underneath them similar to a Microsoft word document.
When you submit your page, there is a default spell and link checker. The spell check is a little sensitive but you can add items to your dictionary, or you can choose just to ignore. The dictionary is not global for all users and will only affect your individual user.
Source code
Source code displays the code for the webpage. From here any edits to the code can be made.
Fullscreen
The fullscreen option expands the webpage to the entire computer screen.