I'm trying to customize the trace display using Grafana Tempo. I use helm grafana/loki-stack https://grafana.com/docs/loki/latest/installation/helm/. Installing command helm upgrade --install loki grafana/loki-stack --set grafana.enabled=true,prometheus.enabled=true,prometheus.alertmanager.persistentVolume.enabled=false,prometheus.server.persistentVolume.enabled=false,loki.persistence.enabled=true,loki.persistence.storageClassName=managed-premium,loki.persistence.size=250Gi -n logs

But when I add the setting tempo.enabled=true nothing happens. Could you please tell me how can I add tempo when deploying this stack? Or how can I add it? Thanks.