In the order window you can manually choose stop loss and/or take profit levels. If you want to use the current price you can click the Copy As buttons to fill out these fields.
You can then change the prices to the stop loss and take profit levels you wish. When you have chosen your preferred levels click on the long bar at the bottom of the screen to enter the trade.
Here you can view such details as your entry price, stop loss and take profit values, which are marked on your chart by horizontal lines which correspond with the price levels.