Steam Controller with XCOM Long War Mod

I am using Steam Controller to play XCOM Long War Mod. In the game when I am in the Mission Controller screen I am unable to select 'Mission Control' in anyway. If I hit right or left on the joystick the focus navigates between 'Research', 'Engineering' etc. never comes down to 'Mission Control' , or 'Expand Event List'. Also in the 'Soldier Selection' screen before going on a mission, I can add soldiers and edit them but there is no way to 'Clear' them or go to the 'Back To Briefing' button etc. Only way to get there is by the touchpad and mouse. Any way to fix this? I am using a steam controller configuration created by Kosmos.