Split Best Fit

“Split Best Fit” isn’t a behavior I see described in the TheBrain 15–specific context I have, so I need to speak conceptually rather than as a confirmed product term.

Given the name, “Split Best Fit” usually implies:

• You’re splitting something (most often a pane, view, or area)

• The system decides the most suitable layout automatically (“best fit”) rather than requiring you to choose “split left/right/top/bottom” explicitly

So in many applications, a “Split Best Fit” command would:

• Look at the current layout and available space
• Decide whether a horizontal or vertical split is more appropriate
• Create a new pane/view beside or below the current one in a balanced way

Examples of what this might mean in a knowledge-graph / editor context:

• Splitting the workspace so you can see:
  • The plex in one area, and
  • Notes or another thought in the new pane

• Or splitting an existing notes/editor area into two views of:
  • The same content (one scrolled elsewhere), or
  • Different, related thoughts

Because this exact command and behavior are not confirmed from the available TheBrain 15 context, I can’t state precisely:

• Where it appears in the UI
• Whether it splits the plex, notes, or some other region
• How the “best fit” logic chooses orientation

If you can share:

1. Where you see “Split Best Fit” (e.g., a menu label, tooltip, or screenshot text), and
2. What’s currently focused when you invoke it (plex, notes, attachments, etc.),