Article Tips and Tricks for Navigating the ArcGIS API for JavaScript Website.
Creating a new profile allow you to have different: bookmarks, cookies, DevTool snippets, extensions, searchEngines, etc
Learn more: How to create new profiles
You can import some useful snippets to speedup your developments when making new storymaps, or building apps using Web AppBuilder, the ArcGIS API for JavaScript:
Learn more: How to import Chrome DevTools Snippets