Can we edit multiple products together?

Hello Deven,

Thank you for your post.

Q: 1. Changing multiple products with same field-value.
A: Store Manager for PrestaShop has built in Mass Product Changer addon allowing to make a bulk changes to the product fields.

You can select multiple products (using Ctrl button) or select all products (Ctrl+A) and click at Mass Product Changer button: http://screencast.com/t/Z3tD8JXfi

Q: 2. Changing multiple products with different field-value (in excel like format for fast modification
A: You can use Import/Export Wizard of Store Manager allowing to export and import .csv files.You're welcome to find a detailed documentation here:

http://store-manager-for-prestashop-documentation.emagicone.com/prestashop-product-management/export-prestashop-products
http://store-manager-for-prestashop-documentation.emagicone.com/prestashop-product-management/import-prestashop-products

Also Store Manager allows to activate "Quick editor in grids" in Preferences(F12) > Advanced tab: http://screencast.com/t/5ACS1soOFRd
This option allows to make a quick changes (like price, quantity etc) in product grid.
Let us know if you have any other questions.

Hello Deven,

Thank you for your reply.

Mass Products Changer is available in Store Manager for X-cart as well. In order to open it, you can select few products, right click and select Mass Products Changer http://screencast.com/t/8XlYLrSna

Also you can find some instructions here http://mass-product-changer-documentation.emagicone.com/

Please note: It is a separate addon for Store Manager and by default it works in demo mode and allows to change only few products at a time, so you could check how it works. In order to unlock all the functionality you'll need to purchase a separate license for this addon.
You can find more information here: http://www.xcart-manager.com/mass-product-changer

Feel free to contact us again if you need more assistance.