Q: Append or override an attribute value

[denizmaral]

Hello everyone,

Is it possible to append all objects or a specific class custom data or override data (if exists)?

"schemas": {
    "customdata": {
      "value": {
        "dataType": "Object",
        "objectRestrictions": {
          "values": {
            "Tagesleistung": {
              "dataType": "String"
            }
          }
        }
      }
    }
  },

Currently I can edit parameter value of a specific path by:

{
  "header": {
    "id": "Hello_Wall_hello-wall_export_changes.ifcx",
    "ifcxVersion": "ifcx_alpha",
    "dataVersion": "1.0.0",
    "author": "Deniz Maral",
    "timestamp": "2026-03-04T12:34:16.565Z"
  },
  "imports": [],
  "schemas": {},
  "data": [
    {
      "path": "93791d5d-5beb-437b-b8ec-2f1f0ba4bf3b",
      "attributes": {
        "customdata": {
          "Tagesleistung": "5"
        }
      }
    }
  ]
}