Module development and code questions

How to enable option to duplicate a content under /admin/content page

Basically under /admin/content in the content listing section there are options for edit , translate and delete.

I want to introduce an option -duplicate to duplicate any content with ease.

How to do it?

Suggestions are welcome

I'm trying to search a module for Google Merchant Center integration. Previously, i tried with Google Feeds module but didn't have results.

Do you know about other modules or differents ways to do that?

I have some code that runs on an admin page controller. So if I do $route_match = \Drupal::routeMatch(); then it relates to that admin page. However, I want to Temporarily change the value of \Drupal::routeMatch() so that it uses the path of a node (for example node/1).

With Drupal 7 I could simply change $_GET['q'] = 'node/1', for example, do my logic and switch it back to the original path afterwards.

I created a module for my marketplace (several stores and owners). It displays a required checkbox, in the purchase funnel. With a link to the general conditions of sale which are rendered in a modal window.

This module works perfectly.

MY PROBLEM :

I no longer want to display the CGV page in the modal window.

I want to display the rendered entity of the store with the CGV display mode.

Can you reply with the correct code ? Thank you

Here is my full code.

1. I want to automatically flag the store with the payment_gateways flag when the commerce_store_payment_gateways_form form is submitted.

2. I want to automatically flag the store with the shipping_methods flag when the commerce_store_shipping_methods_form form is submitted.

I tested this code and it doesn't work for stores :