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Setup Comparison

The Setup Comparison screen lets you put two setups side-by-side, group their parameters using a Change Formatter, and read the differences at a glance.

Find it from the Setups screen's toolbar, or directly at /events/:eventId/setups/compare.

The picker bar​

Across the top, three pickers:

  • Setup A — left side of the diff
  • Setup B — right side of the diff
  • Change Formatter — optional grouping spec; without one the diff lists every parameter alphabetically

The view auto-picks the first two setups on the event when the screen loads, then waits for you to refine the selection.

The body​

A 3-column table: Parameter | A | B. For every parameter the combined setup spec touches:

  • The label and unit are pulled from the Setup Definition
  • The value column shows the formatted value
  • Different rows highlight subtly so the diff is scannable

When a Change Formatter is selected, parameters are grouped into SectionCards using the formatter's groupedParameters spec — each group gets its own header and ordered parameter list. This mirrors HH-DM's "Reference Mode" layout.

Set as Reference​

Each setup card shows a Set as Reference button that swaps that setup into the A slot, leaving the previous A in B. The same flow as HH-DM's "Reference Mode — Selected setup" — useful when the team's reference setup changes mid-event.

What you can do today​

  • Pick any two setups on the active event
  • Apply any of the account's Change Formatters that target the Setup entity
  • Swap the reference setup with a single click
  • See diff highlights in the value columns

What's coming​

  • Three-way diff — A, B, and a baseline column
  • Export to PDF — same renderer as the run-plan PDF
  • Inline change description — pull the Setup Change tab's notes into the comparison view
  • Cross-event setup comparison — pick A from this event, B from another