John Carter TTM Squeeze indicator :
TTM Squeeze indicator can be applied to the Stocks, Options, Futures and Forex markets. The TTM Squeeze Indicator works in conjunction with Tradestation, eSignal, Sierra Charts, and now it is also available for Ninja Trader.Well for using it you have to download it from tradethemarkets.com.They also have placed some tutorial video's on it.
It is priced
http://www.moneytec.com/forums/f46/free-ttm-squeeze-indicator-27265/
Thinkorswim
http://freethinkscript.blogspot.com/2009/05/ttm-like-squeeze-indicator-with.html
MT4
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TTM Trend and Vmax and the such like are basically bar indicators based on Heiken Ashi calculations give or take. In the download pages for Ninjatrader http://www.greattradingsystems.com/Ninja%20Trader%20Indicators/ we have a few heikin aski indicators. Personally I am a fan of the smoothed heikin ashi (with price-I think) version. This allows a normal candle to be coloured the same colour of the heikin ashi direction. This means you do not have to have candles and HA candles on the chart; it’s all in one. http://www.greattradingsystems.com/mt4_indicators/
For metatrader there are also a selection of TTM, heikin ashi indicators on the download page. "
Source : http://www.greattradingsystems.com/2009/07/ttm-trend-indicator-for-ninjatrader-and-metatrader/