Translating a 3D model in WPF using Helix Toolkit

Hello Everyone,

 

I am working a project which requires me to load a 3D Max model in C# WPF using Helix Toolkit, and then traslate and rotate the 3D model by getting an input from the user. I have successfully completed the loading part. Now I want to translate or rotate the model by getting an input from the keyboard.  Your help will be appreciated.