When adding the Avatar Descriptor, the default behavior is to position the Avatar's Viewpoint arbitrarily.

I propose automatically calculating that default starting position to be in between the humanoid eye bones.

This helps beginner avatar creators set up an avatar without caring/noticing this option. Additionally, it also benefits experienced avatar creators since this position has a higher chance of being better than the current behavior. Should this behavior not be good enough for the avatar creator then it doesn't matter, since they would modify its position anyway.

This system follows the design philosophy of avatar contacts as their default position is automated, which can then be modified.