ABHack is a kind of demon 4GL procedure to run with the PERSISTENT option in a development session. It can spy the activity in a source-code procedure editor to pop up auto completion lists for local or global variables, attributes/methods, buffers, temp-table, table and fields names. It includes many other features like a query analyzer for a selected text, open text-selected source file-names an improved navigation by words, ++ insertion, quick comment out, and ability to make the data dictionary resizable.
11-MAR-2007 New features: duplicate line on Alt-Down like Eclipse does, and better handling of full stop when inserting closing guy

05-MAR-2007 New feature: completion for block labels

26-FEB-2007 Three big new features: Make the popup field list scroll to the most likely interesting field after an equal sign. Improved suggested list of buffers after '=' equal operator. Ability to 'Keep track of Section Cursor Position', and restore the previous row and col of a section you visited earlier when you go back to it.