update for dev mode

SUMMARY.md

@@ -65,6 +65,7 @@
     * [Axon Server clustering](operations-guide/setting-up-axon-server/axon-server-clustering.md)
     * [Multi-context](operations-guide/setting-up-axon-server/multi-context.md)
     * [Command-line interface](operations-guide/setting-up-axon-server/command-line.md)
+    * [Development Mode](operations-guide/setting-up-axon-server/development-mode.md)
 * [Production considerations](operations-guide/production-considerations/production-considerations.md)
     * [Versioning Events](operations-guide/production-considerations/versioning-events.md)
     * [Serializers](operations-guide/production-considerations/serializers.md)

operations-guide/setting-up-axon-server/command-line.md

@@ -8,6 +8,7 @@ For the Axon Server Standard edition the only supported commands are:
 - users
 - register-user
 - delete-user
+- delete-all-events (only in [Development Mode](../../operations-guide/setting-up-axon-server/development-mode.md))
 
 Axon Server Enterprise edition supports these additional commands:
 

operations-guide/setting-up-axon-server/development-mode.md

@@ -0,0 +1,17 @@
+# Development Mode
+
+You can start Axon Server in development mode which enables some features for development convenience.
+
+These features can be enabled by configuring the following property:
+
+```text
+axoniq.axonserver.devtools.enabled=true
+```
+
+## Resetting Events
+
+Whilst creating new features it can be convenient to restore Axon Server to a clean state with no events stored. This can also be helpful when writing and running integration tests against your system.
+
+Resetting Axon Server can be done via the [CLI](../../operations-guide/setting-up-axon-server/command-line.md) as well as the UI and REST interface.
+
+ > Note: This feature is disabled when Axon Server is running in cluster mode