Hi!
I'd suggest the addition of the following new variables would be quite useful. Hopefully it would be easy to add these, as each is really just simplifying commonly used / useful calculations:
1. Corrected Prices (i.e. prices which account for market commission) for back and lay prices, so these would simplify from (((back_price-1)*(1-commission))+1) to (back_correct_price).
2. Hedge tradeout value, preferably with numerical attachment. This would be the amounts you would get from trading out depending on what percentage of profit (or loss) you want to leave on/take off the selection, and would be able to draw on other variables for the 'number' (e.g. hedgetrade_0 would leave all profit on, _100 would take all profit off, _50 would be the same as 'tradeout'; and hedgetrade_(100/back_price) would take 100/back_price% worth of profit off).
3. Another expression for market_tradeout which takes account of any existing 'secure' profit in the market when calculating the tradeout value.
4. An expression for event_tradeout - what you will get if you tradeout of all event markets 'now' (and also one that works as per 3., but at event level, and can also account for settled markets in the event).
Thanks