With OCO, it is possible to group two orders in one OCO [one cancels the other] group. OCO group implies that if one order is executed, then the other order is automatically canceled.
Trailing Stop orders are a form of Stop Loss and Entry stop orders. The major purposes of these orders are to save the potential profit or to limit the potential loss, entering to the market through Entry Stop, or closing a position through Stop Loss. Trailing Stop follows a positive direction of the market, shifting stop price when the market price was changed for the "Trailing step" value.
Detailed description of the new orders you will find in updated manual guide of the platform, or contacting our support team.