I love the \"Organize Imports\" command in Eclipse to implicitly add and remove classes imported into a source file (as in Java or ActionScript).
Is there a command in X
I've found Cedar Shortcuts to at least be usable. It's not as good as Eclipse's import feature (it doesn't organize imports), but it can keep you from having to go to the top of a class file and typing an import statement. With this plugin you just place the cursor on the class that needs imported and press Ctrl + Option + I. Here's the github project. https://github.com/cppforlife/CedarShortcuts