Dweezil Latte

Viewer 3 mouse control to walk is backwards (L/R) from 1.2.3 and the camera control in Viewer 3. you move the mouse left to walk/turn right. In the camera control, you move the mouse left to spin/turn left. I am used to the old 1.2.3 viewer and walk often using the mouse to "steer" Is there a setting to make them consistent?