I have a version that I am currently testing that looks decent. There is some slippage in the copied account since it doesn't detect limit orders placed across accounts, but instead hits market when the "Master" account buys or sells. The amount of slippage depends on difference between the bid/ask in the product you trade. I may try a feature that allows for a limit order to be placed as soon as the Master account executes to try to get the same price, but that could be subject to other issues like your limit order never hitting.
I have an email into dev support at Motivewave since the development kit does have access to executions and orders, but errors are happening in the logs when I try to access them. If I could access open orders, it would be possible to duplicate limit orders. So far most of the order/execution access is only related to a strategy that triggers an automated order, not one placed via an order ticket or DOM.