Node.AddInstanceInput

Add a dynamic, serialized port to this node

public NodePort AddInstanceInput(Type type, string fieldName = null);

Parameters	Summary
type	NodePort value type.
fieldName	Unique identifier used to find this NodePort. Automatically assigns a unique name if null.

using UnityEngine;
using XNode;

public class ExampleNode : Node{

    [ContextMenu("Add instance input")]
    void AddPort() {
        NodePort port = AddInstanceInput(typeof(float));
        Debug.Log("Added new input port with name " + port.fieldName);
    }
}

See also: AddInstanceOutput, AddInstancePort, RemoveInstancePort