How to inherit from one extractor to another if both are identical

[ghbook]

This might be basic question.
I want to inherit from one extractor to another if both have identical values.
Instead of defining twice i just want to define once and use that again and again.
For example "archivedmoe": ["archiveofsins"] like this, not sure if this possible

"archiveofsins":
        {
	"directory":  ["{category}", "{board[shortname]}", "{thread_num}"],
	"filename": "{num}.{extension}",
	"postprocessors":[
		{
			"name": "metadata", 
			"event": "post", 
			"filename": "{num}.json",
			"skip": true
		}
	]
      },
"archivedmoe":
      {
	"directory":  ["{category}", "{board[shortname]}", "{thread_num}"],
	"filename": "{num}.{extension}",
	"postprocessors":[
		{
			"name": "metadata", 
			"event": "post", 
			"filename": "{num}.json",
			"skip": true
		}
	]
      },

[mikf]

Inheriting the options from another category is not possible,
but these two sites share the same basecategory - foolfuuka - and you can use that to specify common options for both of them and other 4chan archive sites.

"foolfuuka":
{
	"directory":  ["{category}", "{board[shortname]}", "{thread_num}"],
	"filename": "{num}.{extension}",
	"postprocessors":[
		{
			"name": "metadata", 
			"event": "post", 
			"filename": "{num}.json",
			"skip": true
		}
	]
}

[ghbook]

thanks. its working.