Keymaps Factory Default: Continuous Navigation

Blender can be configured to continuously switch between orbit, pan, zoom when holding MMB and tapping Ctrl, Shift, Alt. I refer to this behavior as Continuous Navigation and it allows a single, uninterrupted navigation motion:

While this has long been possible to set up manually, it may not be widely known? It's also a bit laborious to set up.

Since the functionality already exists and improves viewport navigation without altering current keys, enabling it in the default keymap could allow more users to benefit immediately.

The same behavior is default in Plasticity and others. And perhaps there might even be a case for reducing strain (carpal tunnel syndrome) as it cuts down MMB release-press motions by 2/3.

Proposed default: