Intermediate mode layout

[tomcrane]

As a sound archive aimed at the interested public

I want to allow users to switch between a very simple user interface for audio (scrub, play, volume) that focuses on an individual Range (as per #6) and one that shows more metadata, but is NOT the full mode Universal Viewer with full access to the Manifest - it still focuses on the Range

So that we still focus attention on the Range (track, recording) rather than the Manifest that contains many Ranges.

This introduces a new display layout/mode for the UV, which is significant:

(source: BL)

Questions:

what UI toggles between the two, and how does that relate to full screen, and/or toggling to the regular UV mode, which may or may not be F11-style full screen?