If you want to sell one product with another additional product you can add product components to that product . You can use product components to maximize sales and increase the selling value of these products . To add product components you can follow the steps below :
Step 1. Go to Products Menu - Add
Step 2. Input Product Form - Select Product Type ' Standard ' - Submit
Step 3. Search Product - Click Variant - Edit
Look for the product that you have made in Step 2, then click default variant.
Click Edit Button