How to extract the code for different files while using multi-model editor?

[useDeep]

I am facing issues with updating the code(value) into the json object. Initially, an object, called files containing the name and value is used to select different files and edit their code in the editor. Now I want the code to replace in the original value of the individual object. Like code of main object updated with the value of main and so on. Although I am able to console log and see the value, I am unable to update into the json object catering to individual objects.

Is there a way to use something like a key to update the values?