How to Fix “Mark Occurrences” in Eclipse?

Question

Eclipse is a great editor, and among it\'s many wonderful features one of my favorites is the Mark Occurrences feature. However, I recently installed the Aptana plug-in, and in

Answer 1

If the option mentioned by laurie is checked and you're wondering why it isn't working, you might have hit Alt-Shift-O sometime:

Cannot highlight all occurrences of a selected word in Eclipse

Note, that "Organize Imports" has Ctrl-Shift-O...