Here’s my second attempt at making a List control for Flex that has the functionality of using the Control and Shift keys, but without making the user actually press the Control or Shift keys. For those poor programmers who have been crippled by RSI, now you can at least drag around list data with your one good hand.

This version is much better than the previous version. Now you click on an item and drag to select multiple items. You can still drag and drop items from one list to another. The only difference is that you must first select the items, then click and drag to move items to the other list. Control-click functionality is the default if you only click one item. If you drag to select items and try to select below the visible items it will scroll the list into view.

Here’s the source.