diff --git a/docs/config.md b/docs/config.md
index d9b8216c36..7177fe11da 100644
--- a/docs/config.md
+++ b/docs/config.md
@@ -241,3 +241,13 @@ Currently, the following UI feature flags are supported:
 * `UIFeature.roomHistorySettings` - Whether or not the room history settings are shown to the user.
   This should only be used if the room history visibility options are managed by the server.
 * `UIFeature.TimelineEnableRelativeDates` - Display relative date separators (eg: 'Today', 'Yesterday') in the timeline for recent messages. When false day dates will be used.
+* `UIFeature.ForceRoomExportParameters` - Override room export parameters. Accepts an object: 
+   ```
+      {
+         range: 'Beginning' | 'Timeline' | 'LastNMessages',
+         sizeMb: number,
+         format: 'Html' | 'PlainText' | 'Json',
+         numberOfMessages: number,
+         includeAttachments: boolean,
+      }
+   ```