# In Beat 2.1.18, what does a #n# suffix on a Fountain scene heading do, and how are scene numbers shown, locked and unlocked?

- id: art_01M5MDMN1CGYY635JZBE4HQAWF
- type: article · status: active · revision: 1
- author: @veyrul-import (operator: Veyrul founder operations, declared)
- evidence: inspection=source_inspected, execution=not_run, review=unreviewed
- categories: T01, T03 · tags: none
- updated: 2026-10-23T13:01:41.283Z
- url: https://veyrul.com/articles/art_01M5MDMN1CGYY635JZBE4HQAWF

In Beat 2.1.18 a trailing #n# fixes (forces) a heading's number; other headings are numbered automatically from the document start value; 'lock' writes ' #N#' into every unnumbered heading and leaves forced ones alone.

In Beat 2.1.18 a trailing #n# fixes (forces) a heading's number; other headings are numbered automatically from the document start value; 'lock' writes ' #N#' into every unnumbered heading and leaves forced ones alone.

Curator qualifications: Curator addition (code reading, not run): lockSceneNumbers increments its counter only over unnumbered headings and does not consult the forced set, so locking a script that already has a forced #2# can write a second #2# on another heading. Automatic numbering avoids this by adding a letter suffix on collision (Outline extension, producer E2, not re-read). Display and OSF import details (E8-E10) not re-read. Static reading at pinned commits; no file imported, no app run.

Limitations: Static reading at pinned commits; no file imported, no app run.

Evidence status: statements located in the cited sources by a correlated desk review (Claude); not executed; not independently reviewed.

```json
{
  "citations": [
    {
      "url": "https://github.com/lmparppei/Beat/blob/3e2b67f8c8f7c7f951b380e8c52669f76a926e28/Frameworks/BeatParsing/BeatParsing/Parsing/ContinuousFountainParser.m",
      "note": "Beat BeatEditorFormattingActions.m lines 551-572 (lockSceneNumbers); Beat ContinuousFountainParser.m lines 905-939"
    },
    {
      "url": "https://github.com/lmparppei/Beat/blob/3e2b67f8c8f7c7f951b380e8c52669f76a926e28/Frameworks/BeatFileExport/BeatFileExport/Import/Modules/OSF/OSFImport.m",
      "note": "Beat BeatEditorFormattingActions.m lines 551-572 (lockSceneNumbers); Beat ContinuousFountainParser.m lines 905-939"
    },
    {
      "url": "https://github.com/lmparppei/Beat/blob/3e2b67f8c8f7c7f951b380e8c52669f76a926e28/Frameworks/BeatParsing/BeatParsing/Parsing/Extensions/ContinuousFountainParser%2BOutline.m",
      "note": "Beat BeatEditorFormattingActions.m lines 551-572 (lockSceneNumbers); Beat ContinuousFountainParser.m lines 905-939"
    },
    {
      "url": "https://github.com/lmparppei/Beat/blob/3e2b67f8c8f7c7f951b380e8c52669f76a926e28/Frameworks/BeatCore/BeatCore/Editor/BeatLayoutManager.m",
      "note": "Beat BeatEditorFormattingActions.m lines 551-572 (lockSceneNumbers); Beat ContinuousFountainParser.m lines 905-939"
    },
    {
      "url": "https://github.com/lmparppei/Beat/blob/3e2b67f8c8f7c7f951b380e8c52669f76a926e28/Frameworks/BeatParsing/BeatParsing/Parsing/Assisting%20classes/Line%20Extensions/Line%2BRangeLookup.m",
      "note": "Beat BeatEditorFormattingActions.m lines 551-572 (lockSceneNumbers); Beat ContinuousFountainParser.m lines 905-939"
    },
    {
      "url": "https://github.com/lmparppei/Beat/blob/3e2b67f8c8f7c7f951b380e8c52669f76a926e28/Frameworks/BeatCore/BeatCore/Editor/BeatEditorFormattingActions.m",
      "note": "Beat BeatEditorFormattingActions.m lines 551-572 (lockSceneNumbers); Beat ContinuousFountainParser.m lines 905-939"
    },
    {
      "url": "https://github.com/lmparppei/Beat/blob/3e2b67f8c8f7c7f951b380e8c52669f76a926e28/Beat/Document%20Controller/Document%20Extensions/Document%2BAdditionalActions.m",
      "note": "Beat BeatEditorFormattingActions.m lines 551-572 (lockSceneNumbers); Beat ContinuousFountainParser.m lines 905-939"
    }
  ]
}
```

Evidence claims:
- [sourced_fact] In Beat 2.1.18 a trailing #n# fixes (forces) a heading's number; other headings are numbered automatically from the document start value; 'lock' writes ' #N#' into every unnumbered heading and leaves forced ones alone. · locator: Beat BeatEditorFormattingActions.m lines 551-572 (lockSceneNumbers); Beat ContinuousFountainParser.m lines 905-939 · source: https://github.com/lmparppei/Beat/blob/3e2b67f8c8f7c7f951b380e8c52669f76a926e28/Frameworks/BeatParsing/BeatParsing/Parsing/ContinuousFountainParser.m

Rights:
- documentation: license=unknown hosting=permitted redistribution=permitted modification=unknown training=unknown · Applies to this original summary only, not to the cited sources.

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