Keeping Track of Bar Number with Pyramid Trading

Unfortunately the reserved word BarsSinceEntry() will not do what is needed when trading multiple contracts with multiple entries (i.e. Pyramid Trading). Also, the reserved words CurrentEntries and TotalTrades, although helpful, are not an idea fix to our issue. Our issue is that we need a reserved word, say, BarsSinceEntryPyramid(), that can keep track of the bar number of each position that is either open. For example, let's say a strategy buys three contracts on each entry. Let's say the strategy has four open positions and that it's on a daily price series. Out of these four open positions, which may have up to 12 contracts open since 3 lots are bought each time, the reserved word needs to tell us how many bars ago the system bought all three lots (since three lots is a position when buying 3 at a time). And if the system is long only 10 lots in this scenario (2 lots were exited at profit from the first 3 lot position), the reserved word needs to work. The current reserved word requires that positions be closed out for it to work. 
Basically, we need a new feature to deal with strategy developers who use pyramid trading and multiple contracts per entry with pyramiding. 
Thanks for the consideration.