Description of the new feature/enhancement

I would like to make 2 profiles for same WSL, But as I tested, then you cannot put different GUID to make a duplicate with changes. I guess it is something to do with having same GUID and generator approach for the WSL using source field does not let you to have multiple GUIDs for same profile.

Proposed technical implementation details (optional)

One way would be to let you have different name field for the same GUID and treat them different not merging settings.
Other one I see is to have generator make a guid GUID to a group of terminals with same source, but then have subitem that could have multiple choices.
Then to have a submenu for each terminal profile based on it that basically could have custom generated GUID. If there is only one subprofiles item, then it shows only one and not as a submenu.
Profiles.json then could be something like:

    {
      "guid": "{58ad8b0c-3ef8-5f4d-bc6f-13e4c00f2530}",
      "hidden": false,
      "source": "Windows.Terminal.Wsl",
      "subProfiles": [
        {
          "guid": "{58ad8b0c-bc6f-3ef8-5f4d-13e4c00f2531}",
          "name": "Debian Half Dark",
          "useAcrylic": true,
          "fontFace": "Fira Code",
          "acrylicOpacity": 0.2,
          "colorScheme": "One Half Dark",
          "padding": "0, 0, 0, 0",
        },
        {
          "guid": "{58ad8b0c-5f4d-bc6f-3ef8-13e4c00f2532}",
          "name": "Debian Light",
          "useAcrylic": true,
          "fontFace": "Cascadia Code",
          "acrylicOpacity": 0.2,
          "colorScheme": "One Half Light",
          "padding": "0, 0, 0, 0",
        }
      ]
    }