In Magento admin, under System > Export the user can select individual attributes to be excluded from the export. I'd like to add a 'Select all' link that would select all options.
This question was 90% answered by Nadim here: How to add Select All option in Export Settings of Magento 2 , but it's lacking some detail for me to get the job done.
A) I assume this is created as a module - what should the module.xml look like?
B) Which file should the below XML go to?
<config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:framework:ObjectManager/etc/config.xsd">
<type name="Magento\Backend\Block\Widget\Grid\Extended">
<plugin name="VendorName_ModuleName::After" type="VendorName\ModuleName\Plugin\Block\Widget\Grid\Extended" />
</type>
(I would have asked this as a comment to the original answer, but unfortunately my reputation is not high enough to add comments.)