EDL21, UniqueID, proceeding data of former sensor/integration

Hi, my problem is not exclusively bound to edl21. I used to get the data of my energy counter by using vzlogger and the restful integration (sensor.netz…). while the edl21 is now so easy and to eliminate vzlogger I give it a try and it works well (sensor.smart-meter…) :slight_smile:
How to proceed with the already existing data points? I want to add the readings of the sdl21 integration to the existing restful.sensor data points.

  1. What is history using? Name, friendly name, unique Id
    1.1) Is in case of EDL21 name=unique_ID?
  2. What and where should be changed (see screenshots)
    Thanks a lot in advance