Sign in as different User:
javascript: window.location = _spPageContextInfo.webAbsoluteUrl   '/_layouts/closeConnection.aspx?loginasanotheruser=true&source=' location.href;
 
Site Contents
javascript: window.location = _spPageContextInfo.webAbsoluteUrl   '/_layouts/15/viewlsts.aspx'
 
Site Settings
javascript: window.location = _spPageContextInfo.webAbsoluteUrl   '/_layouts/15/settings.aspx'
 
Page Library
javascript: window.location = _spPageContextInfo.webAbsoluteUrl   '/Pages/Forms/AllItems.aspx'