Properties : Advanced > Location : 3D Graphics
Since 5.0.64, you can now set the visibility of an object in 3D view separately to 2D view. Go to Properties : Advanced > Location.
So now objects created in 3D view or in Graphics 1 should be visible in both views (when possible), but you can uncheck this visibility separately for each view.
Old files should not be affected (correct checks should be provided, e.g. for objects set visible in Graphics 2 but not in Graphics 1 : those objects visibility in 3D view should be unchecked too).
All the best,