Another approach would be to add a pushback gauge.
File Description:
This archive contains version 4.0 of my "groundhandling" gauges, like automated pushback with conversation sounds, a Taxispeed controller using throttle AND brake settings, an arming switch that activates Taxispeed after a landing (incl. setting flaps, spoilers, autobrakes Off), Brakes sound, etc...., and can be added to any FS2004 (!!) aircraft panel. New in V4.0: 1. Better sound mechanism (using Doug Dawsons XMLsound gauge), with advantages: - Individually adjustable sound volumes. - No more "mis-use" of the ADF1 frequency, so no more SoundOn/Off function needed. 2. Reworked bitmaps and code. 3. State-dependant tooltips. 4. Straight pushback before turn is now in meters instead of seconds. By Rob Barendregt.
http://library.avsim.net/search.php?SearchTerm=rcbgh-40.zip&CatID=root&Go=Search