Hola. Gracias por su ayuda:
del paso del 1 al 3 todo bien, pero en el paso 4, 

• Actualice el tipo de producto para que coincida con una de las nuevas variantes.
  

Aqui es donde no encuentro como vincular un  producto existente a la plantilla del producto que contiene las variantes. Me podrias regalar un video de como lo haces?
De antemano, muchas gracias

Hello. Thank you for your help:

from step 1 to 3 everything is fine, but in step 4,

I updated the product type to match one of the new variants.

This is where I can't find how to link an existing product to the product template that contains the variants. Could you please share a video of how you do it?

Thank you in advance.

Hello,To convert your existing individual products into a single product with variants in Odoo, you can follow these steps:

1. Create Product Attributes:

• Navigate to Sales or Inventory > Configuration > Attributes.
  
• Create the necessary attributes for your product. In your case, you will need at least two attributes: Printer and Screen Type.
• Example: Attribute: Printer
  Values: With Printer, Without Printer
  Attribute: Screen Type
  Values: Touch Screen, LCD Screen
  

2. Create a Template for the Product:

• Go to Sales or Inventory > Products > Products.
  
• Create a new product that will serve as the template for the variants.
  
• Enter the product details such as Name, Category, etc.
  
• In the Variants tab, add the attributes created in step 1.
  

3. Add Variants:

• Once the attributes are added, click on Add a line under the Variants tab.
  
• Select combinations of the attributes to create the variants. Odoo will automatically generate the product variants based on the combinations.
  
• Example: Monitor with With Printer and Touch Screen
  Monitor with With Printer and LCD Screen
  Monitor with Without Printer and Touch Screen
  Monitor with Without Printer and LCD Screen
  

4. Link Existing Products to Variants:

• Navigate to each of the existing individual products.
  
• Update the product type to match one of the new variants.
  
• Remove any duplicate products, if necessary.

5. Adjust Inventory and Pricing:

• Ensure that the inventory levels for the variants are correct.
  
• Update the pricing and other details for each variant as needed.
  

Hope it helps