2584871e_4_1_0_Help____Code_Style__HTML__Item
[Description] This display field shows a list of tags that are presented in the source code in the same line with the other tags. If a tag is removed from the list, the editor automatically moves it to a new line, when you add such tag to the source code. Use the button next to the field or press Shift+Enter to open the Inline Elements dialog box, where you can edit the list of tags. [Item] 
Inline elements
IntelliJ IDEA 14.1.0 Help :: Code Style. HTML