Here is a community webinar where we discussed how one can get a combined equity curve and drawdown for a multi-system. And how one can plot the actual drawdown in terms of value rather than a percentage based drawdown.
How to Plot the Equity Curve without Backtesting?
In Amibroker the general way of computing the Equity curve is to backtest the given trading system and the report computes the equity curve, drawdown…etc results for you. And to compute the equity curve you have to push the backtest button every time which makes you little uncomfortable if you want to measure the Equity curve in realtime.