Zephyr scale server vs Zephyr scale cloud: update test data rows/parameter

We are currently using zephyr scale server, but are looking to move to zephyr scale cloud in the future.

In zephyr scale server we have the ability to update the test data row/parameters through API, but via zephyr scale cloud we do not see this ability.
Used API documentation:
- Zephyr scale server: https://support.smartbear.com/zephyr-scale-server/api-docs/v1/

- Zephyr scale cloud: https://support.smartbear.com/zephyr-scale-cloud/api-docs/

An example from zephyr scale server:

PUT call to endpoint: /testcase/{testCaseKey}

// Simple request, updating parameters
{
  "parameters": {
    "variables": [
      {
        "name": "Username",
        "type": "FREE_TEXT"
      },
      {
        "name": "Country",
        "type": "DATA_SET",
        "dataSet": "Country"
      }
    ],
    "entries": [
      {
      	"Username": "Admin",
        "Country": "England"
      },
      {
      	"Username": "Tester",
        "Country": "Brazil"
      }
    ]
  },
  "testScript": {
    "type": "STEP_BY_STEP",
    "steps": [
      {
        "description": "User {Username} is from {Country}"
      }
    ]
  }
}

Is it not possible to update test data rows/parameters via API on Zephyr scale cloud?