To Organize Import statements in Flex Builder , click on Source > Organize Imports to organize imports alphabetically.
The shortcut keys for it is : CTRL + Shift + o
Please note that that imports can only be organized in this manner in ActionScript files only. We can not Organize Imports in MXML files.
In Flex Builder 3, the above action will remove Unwanted Import Statements also.
Happy Flexing…:)
