Insert image or video at the caret position.
When there is a selection, the selected block is deleted and image or video is inserted.
Inserted images or videos are uploaded to the server.
Related settings : Setting Import API and Upload API
|actionName||String||'insertDrawingObject' image and video inserting API|
[file, file ...]: Array including file object
|type||String||Type of the file to insert ('Image', 'Video')|