[acesonic7]

Summary

Numeric attributes get a Fill levels… button next to "Add level". It opens a panel that generates the level set:

• Methods:

  • range + step (10 → 60 every 10);
  • range + count (5 levels from 15 to 75);
  • around a reference (30 ± 20% × 2 → 18, 24, 30, 36, 42);
  • geometric (5, 10, 20, 40).

• Rounding by unit (lib/levelFill.ts):

  Attribute	Steps offered	Default
  minutes	1, 5, 10, 15 min	5 min
  hours	0.25, 0.5, 1 h	0.5 h
  money (currency format or units such as EUR, €, $, £)	0.01, 0.10, 0.50, 1.00	0.50
  pivot multipliers	×0.01, ×0.05, ×0.1	×0.05
  other	0.1, 1, 5, 10	1

• Apply to: the shared levels, or one alternative's own levels. The latter creates or replaces its per-alternative set.

• Replace or add: "Replace" swaps in the new set. "Add to existing" merges the values into the current set. Levels whose value stays keep their id, display label and image.

• Preview: the same number line as the levels editor, plus the values in mono.

• Explanations, without blocking:

  • levels merged by rounding;
  • negative values (allowed for delta pivots);
  • non-positive multipliers;
  • more than 5 levels;
  • why geometric spacing helps;
  • a tip to use a multiplier pivot for respondent-specific references.

• Invalid inputs show a reason instead of a preview (zero step, more than 12 levels, ratio of 1).

• The panel starts from the attribute's current levels. Escape or Cancel closes it and returns focus to the button.

Test plan

• npm test (1034 passed, 13 new in levelFill.test.ts), tsc --noEmit
• Browser:
  • Travel time 15–75 × 5 → 15/30/45/60/75 min, with the original three level ids kept.
  • Cost as a multiplier pivot → ×0.6–×1.4 with ×0.05 rounding.
  • Cost in EUR → rounding options 0.01/0.10/0.50/1.00 EUR, defaulting to 0.50, and the merge warning when rounding collapses levels.
  • Escape closes the panel.
• CI

🤖 Generated with Claude Code

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Project	Deployment	Actions	Updated
utilitylab	Ready	Preview	Oct 7, 2026 1:56pm UTC