Add docs

docs/configs/settings.md

@@ -229,6 +229,18 @@ disableCollapse: true
 
 By default the feature is enabled.
 
+### Initially collapsed sections
+
+You can initially collapse sections by adding the `initiallyCollapsed` option to the layout group.
+
+```yaml
+layout:
+  Section A:
+    initiallyCollapsed: true
+```
+
+By default the feature is disabled.
+
 ### Use Equal Height Cards
 
 You can enable equal height cards for groups of services, this will make all cards in a row the same height.