Block trade signals indicators for futures indices

I use many different chart variations of the same futures contract to get a good perspective for the trade entry. Block trades help me tell whether the trade is likely getting faded, if the traded is exhausted, or if the trade has solid momentum behind it.
The lack of volume on retests of a support areas and resistance areas is sometimes a good entry. A lot of traders place there buy/sell stops near these places to add to there position thinking the trend will continue only to get stopped out.