By switch statements, you mean this?

switch (someInt) {
    case 0:
    // Do something
    break;
    case 1:
    // Do something else
    break;
}

It's just another way of doing If statements, so UFE should be compatible with that.

But more specifically, we'd need to see the API for Orbit to tell you how easy/hard it is to incorporate.

Okay as for the API on the official website of Orbit here's what I found.

Constructors
For this section a runtime Orbit network will be called ‘NetworkName’.
public NetworkName(): constructs an instance of NetworkName with all skill levels set to 1.
MyNewNetwork myNewNetwork = new MyNewNetwork();

Enumerators
Public enum Skills: enumerator containing the names of all the skills in your network with zero offset.
// Levels up the Fire skill in an instance of MyNewNetwork 
MyNewNetwork myNewNetwork = new MyNewNetwork(20.0);
myNewNetwork.LevelUp(MyNewNetwork.Skills.Fire,5.0);

Methods
public int Classify(double[] levels): classifies the levels array as one of the classifications provided to Orbit in the Orbit Trainer. Returns the classification as an integer if the length of levels is equal to the number of skills in the network.
//Instantiate a MyNewNetwork, classify a level array then print out the results to the console
MyNewNetwork myNewNetwork = new MyNewNetwork();
Debug.Log(myNewNetwork.Classify(new double[4]{40.0, 30.0, 23.5, 2.5}); //Prints out an integer

That's all I found on their API document page unfortunately. So yeah Yumcha if this still isn't enough info on Orbit's API structure I'll send a request for more detail of Orbit's API to Tom (the developer in charge of Orbit) who I have been communicating with on the Unity forums where I'm also subscribed to by the way.