Yes, it is. You can freely use this extension with one step checkout extension 

You can add unlimited users to the company account.

Yes, of course, you can. We can custom the module as your needs. Note that, customization may cost an extra fee. Please drop us an email at [email protected] to submit your request for more information.

Yes, it can work with all types of products well; simple, configurable, downloadable, and virtual products.

No, the admin cannot view the comments. Only customers could see what they added to the comment sections. 

These comments are just a special note which the customer adds to the products.

If a product exists in both wishlist and shopping cart, the product will not be removed from the wishlist if it is concluded in any orders that have been placed. 

Yes, the customer can add the single product to multiple wishlists.

The customer can add the products to the cart from the wishlist. But the added product gets removed from the wishlist.

Please kindly submit a support ticket or send a request at [email protected].