The header of map

I want to put an identifier in front of the data where the place that is circled with red line,In order to make people understand the data what it is image

  "browser-info": {
    "language": "zh-CN",
    "platform": "Win32",
    "userAgent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/88.0.4324.104 Safari/537.36",
    "vendor": "Google Inc."
  "system-info": {
    "file.encoding": "UTF-8",
    "": "Java(TM) SE Runtime Environment",
    "java.runtime.version": "1.8.0_65-b17",
    "java.vendor": "Oracle Corporation",
    "java.vendor.url": "",
    "java.version": "1.8.0_65",
    "": "Java HotSpot(TM) Client VM",
    "java.vm.version": "25.65-b01",
    "": "Windows 10",
    "os.version": "10.0",
    "user.language": "zh",
    "user.timezone": "Asia/Shanghai"
  "metabase-info": {
    "databases": [
    "hosting-env": "unknown",
    "application-database": "h2",
    "application-database-details": {
      "database": {
        "name": "H2",
        "version": "1.4.197 (2018-03-18)"
      "jdbc-driver": {
        "name": "H2 JDBC Driver",
        "version": "1.4.197 (2018-03-18)"
    "run-mode": "prod",
    "version": {
      "tag": "v1.37.7",
      "date": "2021-01-20",
      "branch": "release-x.37.x",
      "hash": "2b034aa"
    "settings": {
      "report-timezone": null

Hi @TTTnny
Giving the question a descriptive name would probably be the best you can currently do.
There’s a request for being able to customize the legend of maps: - upvote by clicking :+1: on the first post