How do you set the default settings of the Viewport camera (the 'camera' that allows you to see into a viewport as you open blender.)(NOT 3D scene camera)? Because of our workflow in the office I have to change the default units and that result in the scene camera zoomed way in and when I dolly out the whole scene disappears because the clip limits are now super small! I know to change the properties of this camera in the'View' dropdown on the RHS of the 3D window but that is not a setting that 'sticks'? Where can i set those default values? Is it in preferences somewhere? Thanks
EDIT: Attached test .blend file
So the 'Save as Startup' cameras are fine (see below):
But when I change any other window to a 3D viewport (ie: the Shader Editor, below) the camera in that view reverts to the not very useful 'default' 50mm. It's that 'default' I want to change.