If MultiCharts sends a stop order with the price equal to current market price or better (guaranteed to be executed) it will be rejected by the broker. Therefore, MultiCharts converts such stop orders into market orders.
<div style="background-color: #E3FBE5;">Note: If you manually drag Stop orders to the price equal to current market price or better (guaranteed to be executed), they won’t be converted into market orders. <br/> But if the sent order is modified, i.e. moved to the price equal to current market price or better (guaranteed to be executed), it will be rejected and modification will not be executed. </div>
Stop-Limit orders: if at the moment an order is sent its stop level is met, then it will be converted into market order.