It provides shortcuts to
– Duplicate a Tab
– Fix the developer.salesforce.com/forums Showing All Questions issue
– Open Classic Setup
– Open Lighting Setup,
– Open the Developer Console.
– Open Org Playground
– Open Org Component Library
– Open Org Lighting Web Component Documents
Duplicate tab duplicates the current tab similar to right clicking and choosing `Duplicate` just with 100% less chance of accidentally closing the tab.
Fix Forum fixes the https://developer.salesforce.com/forums from showing All Questions when you went to a specific question by reloading the page with our the `#!/feedtype=RECENT&criteria=ALLQUESTIONS&` in the url. Ream more here: https://wipdeveloper.com/2017/08/31/developer-salesforce-comforums-showing-questions/
Open Classic Setup && Open Lighting Setup && Open the Developer Console all do what they say in a new tab, not a new window *cough* Dev console *cough*