Possible to enable and disable parameters based on HostIdentifier?

[Banner-Keith]

I am trying to get feature parity between CLI and Visual Studio.

In Visual Studio you can decide if you want to add a new project template to an existing solution or create a whole new solution.
In command line I can replicate this by having a parameter that can be passed. In this case I have named it CreateSolution. But I don't want that parameter to show up in Visual Studio.

I understand the hooks for isEnabled don't really exist yet, so I am not too worried about this, but it'd be nice for my template to be ready if that feature is added.

Example configuration:

"symbols": {
    // Used for CLI, not in VS
    "CreateSolution": {
      "type": "parameter",
      "datatype": "bool",
      "defaultValue": "true",
      "description": "If true this will be treated as a new project without an existing solution. A solution file will be generated.",
      "isEnabled": "(HostIdentifier == \"dotnetcli\" || HostIdentifier == \"dotnetcli-preview\")"
    },
    "HostIdentifier": {
      "type": "bind",
      "binding": "host:HostIdentifier"
    }
  },

I am running my template with --verbosity diagnostic and in the output I see this:
[Debug] [Template Engine] => [Execute] => [Template content generation]: [HostParametersBindSource]: Retrieved bound value for 'HostIdentifier': 'dotnetcli'.

Which means the HostIdentifier is binding correctly my symbol. But CreateSolution is always disabled and doesn't even show up in the debug output. I suspect that maybe the HostIdentifier value is being bound after the isEnabled value is evaluated.