You can enter the whole code manually but the more effective way is the usage of the built-in tags list you are provided with. This list includes all HTML tags you can use on your pages. Just select it from pop-up menu, or press Cntrl-E, or click the mouse right button and select the tag you need from appeared list. This will paste full tag with opening and closing parts onto the page. The rest you should do is just place the text in it and define tag’s properties.
You can automatically convert all tags into uppercase or lowercase whenever you wish to.