Ensure reference is it's own toc that can be linked to

docset.yml

@@ -1,4 +1,5 @@
 project: 'Elastic documentation'
+max_toc_depth: 2
 
 features:
   primary-nav: true
@@ -56,38 +57,14 @@ cross_links:
 toc:
   - file: index.md
   - toc: get-started
-    in_nav: true
   - toc: solutions
-    in_nav: true
   - toc: manage-data
-    in_nav: true
   - toc: explore-analyze
-    in_nav: true
   - toc: deploy-manage
-    in_nav: true
   - toc: cloud-account
-    in_nav: true
   - toc: troubleshoot
   - toc: release-notes
-  - file: reference/index.md
-    in_nav: true
-    children:
-      - toc: reference/security
-      - toc: reference/observability
-      - toc: reference/search
-      - toc: reference/elasticsearch
-      # The next one should be child of ☝️
-      - toc: reference/elasticsearch-clients
-      - toc: reference/ingestion-tools
-      # The next two should be children of ☝️
-      - toc: reference/fleet
-      - toc: reference/apm
-      # The next one should be child of ☝️
-      - toc: reference/apm-agents
-      - toc: reference/ecs
-      - toc: reference/data-analysis
-      - toc: reference/cloud
-      - toc: reference/glossary
+  - toc: reference
   - toc: extend
   - toc: raw-migrated-files
   - hidden: 404.md
@@ -296,4 +273,4 @@ subs:
   apm_server_version: "9.0.0"
   version: "9.0.0"
   release-date: "2-April-2025"
-  heroku: "Elasticsearch Add-on for Heroku"
+  heroku: "Elasticsearch Add-on for Heroku"

reference/toc.yml

@@ -0,0 +1,19 @@
+toc:
+  - file: index.md
+  - toc: security
+  - toc: observability
+  - toc: search
+  - toc: elasticsearch
+  # The next one should be child of ☝️
+  - toc: elasticsearch-clients
+  - toc: ingestion-tools
+  # The next two should be children of ☝️
+  - toc: fleet
+  - toc: apm
+  # The next one should be child of ☝️
+  - toc: apm-agents
+  - toc: ecs
+  - toc: data-analysis
+  - toc: cloud
+  - toc: glossary
+