This is a problem with the way Captain Sim did the views for the C130 aircraft.  I have the E, H and J models and they all have this issue.  Unfortunately there doesn't seem to be a means to supmit a support ticket to Captain Sim regarding this issue.  Yes you can create a custom view to look left and right but then you have to create a separate profile for the C130 aircraft so you don't mess up your existing profile.  I have all of the 9 available custom views already configured and don't want to have to loose any of those to create custom views to look left or right as Captain Sim should have considered those views when configuring their cameras.  To answer your question you would need to create a new profile for the C130 and after selecting that you would need to create custom views for looking left and right and then assign those views to your controller.  If someone knows how to modify the cameras.cfg file for the C130's I would appreciate them chiming in.

Correction, the keyboard view commands do not work after the changes I made to the camera.cfg file.  But then they didn't work before either.  At least my hat switch which is configured to cockpit quickview left and right works.  So for now this is fixed for me but I really wish Captain Sim would fix the camera.cfg files to the keyboard view commands work.