Amibroker - multiple open positions

I am playing with Amibroker demo and I am trying to see is this program can handle multiple open positions at the same time. It is not clear from the manual that it can do it and how. Does anyone know? I am trying to test this feature with a simple system like,

buy next open if C > close of 3 days ago

exit stop/target = 10% of entry price.

It will support multiple positions in backtest mode RawMulti as well as scaling in and out.