thanks for sharing!Edit all products at the same time, you can edit prices, categories, metas, description, tags, taxes... and much more, very useful module for saving time. I have installed in a Warehouse 4.2.1 with PS V. 1.7.5.0 and works good
https://addons.prestashop.com/en/fast-mass-updates/19965-bulk-mass-editing-products.html
The module supports advanced stock management and multi-shop
- Products and combination of the products
 - Final / base / wholesale price: you can increase/decrease by percentage / value or replace by another price.
 - Set tax rule
 - Increase / decrease the quantity of product or replace it with another value.
 - Setting minimal products quantity to buy
 - Setting the text when the product is in stock
 - Setting the ordering when the product is out stock
 - Change category / default category (add categories to the current or set other, removal of certain categories)
 - Change manufacturer and supplier
 - Add / edit discount to products or combinations
 - Add accessories to the products
 - Turn off or turn on product.
 - Add features / specifications for products
 - Change Visibility / Condition / Options product / Display «On sale»
 - Change delivery / weight and size
 - Set impact on weight
 - Add image to product or combinations.
 - Setting the legends and their generation (category, manufacturer, product name) for images
 - Add short / long description (multiple languages)
 - Generating short / long description by properties, manufacturer, final price, product name, reference, category
 - Add delivery method
 - Setting the reference of supplier
 - Setting the reference, EAN-13, UPC for products and combinations
 - Remove combination with selected attributes
 - Remove attributes from combinations
 - Add attributes incomplete combinations
 - Change / edit attachments
 - Change / edit meta tags (title, keywords, description, tags, meta generator by properties, manufacturer, final price, product name, reference, category), remove meta tags
 - Change friendly url (generator by manufacturer, final price, product name, reference, category)
 - Create custom fields
 - Create new products
 
Powerful filter by products:
- the name (exact match / occurrence)
 - id (exact match / occurrence)
 - EAN-13, barcode (exact match / occurrence)
 - description (exact match / occurrence)
 - short description (exact match / occurrence)
 - category and default category
 - manufacturer
 - supplier
 - carrier
 - image
 - presence of discounts
 - activity
 - quantity
 - price
 - feature
 - date created
 
grazieeEdit all products at the same time, you can edit prices, categories, metas, description, tags, taxes... and much more, very useful module for saving time. I have installed in a Warehouse 4.2.1 with PS V. 1.7.5.0 and works good
https://addons.prestashop.com/en/fast-mass-updates/19965-bulk-mass-editing-products.html
The module supports advanced stock management and multi-shop
- Products and combination of the products
 - Final / base / wholesale price: you can increase/decrease by percentage / value or replace by another price.
 - Set tax rule
 - Increase / decrease the quantity of product or replace it with another value.
 - Setting minimal products quantity to buy
 - Setting the text when the product is in stock
 - Setting the ordering when the product is out stock
 - Change category / default category (add categories to the current or set other, removal of certain categories)
 - Change manufacturer and supplier
 - Add / edit discount to products or combinations
 - Add accessories to the products
 - Turn off or turn on product.
 - Add features / specifications for products
 - Change Visibility / Condition / Options product / Display «On sale»
 - Change delivery / weight and size
 - Set impact on weight
 - Add image to product or combinations.
 - Setting the legends and their generation (category, manufacturer, product name) for images
 - Add short / long description (multiple languages)
 - Generating short / long description by properties, manufacturer, final price, product name, reference, category
 - Add delivery method
 - Setting the reference of supplier
 - Setting the reference, EAN-13, UPC for products and combinations
 - Remove combination with selected attributes
 - Remove attributes from combinations
 - Add attributes incomplete combinations
 - Change / edit attachments
 - Change / edit meta tags (title, keywords, description, tags, meta generator by properties, manufacturer, final price, product name, reference, category), remove meta tags
 - Change friendly url (generator by manufacturer, final price, product name, reference, category)
 - Create custom fields
 - Create new products
 
Powerful filter by products:
- the name (exact match / occurrence)
 - id (exact match / occurrence)
 - EAN-13, barcode (exact match / occurrence)
 - description (exact match / occurrence)
 - short description (exact match / occurrence)
 - category and default category
 - manufacturer
 - supplier
 - carrier
 - image
 - presence of discounts
 - activity
 - quantity
 - price
 - feature
 - date created