No need to worry about being a beginner, we’ve all been there. I appreciate you pointing that out though. I assume by HTML tags you mean the HTML source of the page that is currently loaded? This is technically possible but the functionality for it has not been exposed to blueprints. That’s because it’s not really something within the scope of this plugin. It is not meant for surfing web pages or anything that would involve the need to work with HTML source, as the WebBrowserWidget that comes with the engine is more designed for that.
Are you looking to debug your page while you’re working on your game? You can do this with CTRL+SHIFT+I which is also outlined in the documentation. Otherwise perhaps you can provide more insight into what you’re looking to achieve and why you need that functionality?