Enabling [feature_toggles] for grafana.ini in helm

How do we enable [feature_toggles] for grafana.ini in helm? I don’t an option in the default values. Trying to enable below features using helm . Thanks

enable = tempoSearch tempoBackendSearch tempoServiceGraph tempoApmTable```

Any help here? Other than going to cluster and editing configmap manually, I’d like to do it with helm… thanks