I have added a custom field in my WooCommerce products like in this question/answer:
Display a custom product field before short description in WooCommerce.
Is it possible to add this custom field to the product bulk edit special page (accessible from Admin products list page)?
Yes it is possible, and without any hooks and code:
That is all :)
p.s. docs: https://bulk-editor.com/document/meta-fields/
Yes it's possible to bulk edit products for your custom field
'_text_field'
(as in your linked question/answer).You can add this custom field at the beginning or at the end of edit page.
woocommerce_product_bulk_edit_start
woocommerce_product_bulk_edit_end
The code (the custom field is at the beginning here):
Code goes in function.php file of your active child theme (or theme) or also in any plugin file.
This code is tested and works. You will get this: