Split Timeline View (Independent Video and Audio Panels)

Problem:
When working on long-form projects with high audio track counts, the timeline panel becomes cluttered. Scaling up audio tracks to see waveforms forces the video tracks completely off-screen, requiring constant vertical scrolling.

Proposed Solution:
Allow users to split the view of a single sequence timeline into two stacked or side-by-side workspace panels—similar to the historical Final Cut Pro 7 layout. One panel could be scrolled/scaled to focus exclusively on top video tracks, while the other panel focuses strictly on bottom audio tracks.

Why native workarounds fail:
Duplicating the sequence or loading a sequence into the Source Monitor breaks active editing flow. The timelines do not mirror dynamic cuts or clip movements in real-time, making a native, unified split-view necessary for complex audio-to-video alignment.