Persistence service not modifiable: rrd4j

I’m trying to add data through the API (API-explorer) to rrd4j, but get this error message

  "error": {
    "message": "Persistence service not modifiable: rrd4j",
    "http-code": 400

Do I need the change something, or is this not possible?
I actually want to add some data to my items in the past.
In influxdb this is no problem and I already managed to do this.