Magento 2 – How to Delete Multiple Store Views

I'd imagine that this would be quite difficult. Increment id's are stored in the eav_entity_store table and unsurprisingly each store has it's own entry which is updated when an order (and quote, invoice etc) is created. To get all stores to use the same incrementer you would need to somehow rewrite this logic so it used the same row in the DB. Quite what impact this may have on other areas of the site is something else that would need to be considered.

If you wanted this as a feature you can write a module, and observe the save product event and loop through all the stores and either:

• condition based looking for "english" if they are named like that
• hardcode the id's
• provide a configuration option in the admin to select the english stores.
• add an attribute to the store object

Another way to do it as a one off:

<?php

require '../app/Mage.php';

$englishStore = 1; // English Store (the one you want to copy from)
$attribute = "short_description"; // Attribute to copy

foreach (Mage::app()->getWebsites() as $website) {
    foreach ($website->getGroups() as $group) {
        $stores = $group->getStores();
        foreach ($stores as $store) {
            //store object
            //print_r($store->getData());

            // if english found in name or change this so it's hardcoded store id's
            if (strstr($store->getData('name'),"english")) {

                $StoreToUpdateCollection = Mage::getModel('catalog/product')->getCollection()
                    ->addAttributeToSelect('*')
                    ->addAttributeToFilter('store_id', $store->getData('store_id'));

                foreach ($StoreToUpdateCollection as $product) {

                    // get the description from the base English store
                    $englishProduct = Mage::getModel('catalog/product')->setStoreId($englishStore)->loadByAttribute('sku', $product->getData('sku'));
                    $newValue = $englishProduct->getData($attribute);

                    // update the attributes for the current store for the product ID
                    Mage::getSingleton('catalog/product_action')->updateAttributes(
                        array($product->getData('id')),
                        array($attribute => $newValue),
                        $store->getData('store_id')
                    );
                }


            }


        }
    }
}

I have not tested the updating part, would suggest trying this on a dev version.