Ability to reference contemporary/historical ranks in sims/portfolio rules [i.e. Rank(0), Rank(10), Rank(25), etc]. That would be useful for investigations of how the change in a stock's rank (not just its absolute level) might be correlated to changes in its performance (i.e. could a rapid increase in rank--even if in the mid ranges--presage a bump in stock price?)

alkalex made the same request in his post at: http://www.portfolio123.com/mvnforum/viewthread?thread=568#1784
["What I now have in mind is this: Rank(0) > Rank(10) for a buy rule, and Rank (0) < Rank (10) for a sell rule. In plain language, this command is equal to telling the system to buy a position if its rank is increasing over time, and sell a position if the rank is decreasing over time."]