it will look just like on other exchanges that offer OCO!, The main function is, allowing trader  to place a pair of orders stipulating that if one order is executed then the other is automatically canceled.
For Launch Date, I don't think you will get any answer in current time, because it's still no exact date, I looked for that on all their social media and website and this is information.
It seems like they need to some marketing to let's people know about their product and feature before launching the exchange.