How to obtain all fields values in plugin?

I was able to access the content of all fields using this technic:
Copy original strapi Inputs component from strapi-plugin-content-manager to :
extensions/content-manager/admin/src/components/Inputs/index.js

Add at the top Inputs/index.js

import EditViewDataManagerContext from "../../contexts/EditViewDataManager";

before return write:
const context = React.useContext(EditViewDataManagerContext);

and pass to InputsIndex props this data:

 contextData={{
          modifiedData: context.modifiedData,
          initialData: context.initialData,
        }}

I’m try to use this technic in my plugin component:
plugins/colorpicker/admin/src/components/colorPicker/index.js
But after call this code inside local plugin:

const context = React.useContext(EditViewDataManagerContext);

I’m recieve : context is undefined.

Can anybody, please, explain to me why components in local plugin don’t access EditViewDataManagerContext ?