/Enable-Feature /FeatureName: /PackageName: Enables the specified feature in the image. If the package name is not specified, ...

/Enable-Feature /FeatureName: [/PackageName:]

  Enables the specified feature in the image. If the package name is not
  specified, the Windows Foundation package is assumed.

    Examples:
      DISM.exe /Image:C:	est\offline /Enable-Feature /FeatureName:Hearts

      DISM.exe /Image:C:	est\offline /Enable-Feature
        /PackageName:Microsoft.Windows.Calc.Demo~6595b6144ccf1df~x86~en~1.0.0.0