diff --git a/charts/omada-controller/5.15/templates/extra-manifests.yaml b/charts/omada-controller/5.15/templates/extra-manifests.yaml
new file mode 100644
index 0000000..0e97856
--- /dev/null
+++ b/charts/omada-controller/5.15/templates/extra-manifests.yaml
@@ -0,0 +1,8 @@
+{{ range .Values.extraObjects }}
+---
+{{- if typeIs "string" . }}
+{{ tpl . $ }}
+{{ else }}
+{{ tpl (. | toYaml) $ }}
+{{- end }}
+{{ end }}
diff --git a/charts/omada-controller/5.15/values.yaml b/charts/omada-controller/5.15/values.yaml
index b314beb..47b61fb 100644
--- a/charts/omada-controller/5.15/values.yaml
+++ b/charts/omada-controller/5.15/values.yaml
@@ -103,3 +103,17 @@ nodeSelector: {}
 tolerations: []
 
 affinity: {}
+
+# extraObjects could be utilized to add dynamic manifests via values
+extraObjects: []
+# Examples:
+# extraObjects:
+# - apiVersion: kubernetes-client.io/v1
+#   kind: ExternalSecret
+#   metadata:
+#     name: grafana-secrets-{{ .Release.Name }}
+#   spec:
+#     backendType: gcpSecretsManager
+#     data:
+#     - key: grafana-admin-password
+#       name: adminPassword