See page 36 on API PDF attached for Reuters data feed that needs to be available inside MT4 offline chart.
This should be working just like a standard chart in MT4
External trade placer should be able to trade 30, 60, 90, 120, 300 second trades
+ be available to execute from inside MT4 as a line of code/ script.
Another thing to add to the trade executer will be to note the time in milliseconds that the trade takes to execute on the binary server from signal received to trade placed..