Early preview of Microsoft Edge group policies

SeanLyndersay-MS 

I have a question for one of the settings:

Using the admx/adml templates, whe i what to configure the Administrative Templates\Microsoft Edge\Manage Search Engines setting, the example value is:

[
{
"suggest_url": "https://www.example1.com/qbox?query={searchTerms}",
"search_url": "https://www.example1.com/search?q={searchTerms}",
"name": "Example1",
"keyword": "example1.com",
"is_default": true,
"image_search_url": "https://www.example1.com/images/detail/search?iss=sbiupload"
},
{
"search_url": "https://www.example2.com/search?q={searchTerms}",
"suggest_url": "https://www.example2.com/qbox?query={searchTerms}",
"image_search_url": "https://www.example2.com/images/detail/search?iss=sbiupload",
"name": "Example2",
"keyword": "example2.com"
},
{
"suggest_url": "https://www.example3.com/qbox?query={searchTerms}",
"search_url": "https://www.example3.com/search?q={searchTerms}",
"name": "Example3",
"keyword": "example3.com",
"encoding": "UTF-8",
"image_search_url": "https://www.example3.com/images/detail/search?iss=sbiupload"
}
]

so i wanted to enter:

[
{
"suggest_url": "https://www.google.com/search?output=chrome&q={searchTerms}",
"search_url": "https://www.google.com/search?q={searchTerms}",
"name": "Google",
"keyword": "google.com",
"is_default": true,
"image_search_url": "https://www.google.com/search?q={searchTerms}&tbm=isch"
}
]

but there is only a online textfield.  Is the correct value a path to a .json file or how should it be configured?

Another question

Will it be possible to configure flags as well as settings?

/Jakob