Show Usages action.
Shows quick popup with usages of element under cursor. Use Ctrl-Alt-F7 to invoke.

Xml Support.
- XSLT 2.0 stylesheets are supported
- XHTML 1.1 documents are supported
Maven integration
- Profiles support
- Selectable profile on project import
- Profile activation/deactivation via Maven Projects toolwindow
- Shortcuts can be assigned to Maven goals
- Maven goal can be run before/after IDEA make or before launching Run/Debug configuration.
Spring integration