Most of IntelliJ IDEA advanced features (rename refactorings, navigation to source, usage search and the others) are available in JBoss Seam pageflow graphical designer. Just right-click a node (page) or an edge (transition) to bring up a popup menu where you can select an appropriate action. Moreover, you can double-click a page node to start in-place editing, create new pages using drag'n'drop and link existing pages together by simply drawing a line from one page to another.