Accept Caption When Uploading From File and Drag and Drop

We want to upload an image with a custom caption and an image at the same time.
As a result, we ask that you allow this section (attached) to output caption together with the url in the normal manner.

- How we want it....
{
"type" : "image",
"data" : {
"file": {
"url" : "https://www.tesla.com/tesla_theme/assets/img/_vehicle_redesign/roadster_and_semi/roadster/hero.jpg"
},
"caption" : "Roadster // tesla.com",
"withBorder" : false,
"withBackground" : false,
"stretched" : true
}
}

Regards.

- Section of concern