Event for new position (manual trade)

Good evening,

I haven't touched C# or the API in a good while, and I am searching around but currently stuck.
I would like an event to fire when I open a trade manually, as opposed to algorithmically.

namespace cAlgo
{
    [Robot(TimeZone = TimeZones.UTC, AccessRights = AccessRights.None)]
    public class U1PositionManager : Robot
    {
        [Parameter(DefaultValue = 0.0)]
        public double Parameter { get; set; }

        protected override void OnStart()
        {
            Positions.Opened += PositionsOnOpened;
        }

        //protected override void OnPositionOpened(Position openedPosition)
        private void PositionsOnOpened(PositionOpenedEventArgs args)
            positionShell positionInstance;
            positionInstance = new positionShell();
            Print("this executes when I first manually create a new position");

            positionInstance.xxx1 = args.Position.Id;
            Print("This never executes");
         }
    }      

    class positionShell
    {
        public int xxx1
        {
            get { return xxx1; }
            set { xxx1 = value; }
        }

        public int xxx2
        {
            get { return xxx2; }
            set { xxx2 = value; }
        }

    }
}

I have been playing about with "OnPositionOpened" and "PositionsOnOpened" and neither seems to be working.

Any help would be appreciated
Thanks