Login at /wp-admin.
Once you are logged in, navigate to a page and click on the “Edit Page” button in the top menu:
To edit the large image, click on the edit icon highlighted in blue below.
This will pop-up an edit window. Click on the existing image to pop-up a replacement screen for uploading a new image:
Drag your new image into this area or select a file to upload:
To add a new Product, go to the products side menu and select “Add New”:
Fill out the Product title and Description. In the right sidebar, there is the Product Categories area where you can tag the product for each category:
In the Product data area you will only use the “Regular Price” field to put in the product price:
If you have a Price Range to enter, use the Starting Price and Ending Price fields below the Regular Price area:
And finally, upload an image for the product in the “Featured Image” area in the right sidebar towards the bottom of the page:
Save the product when you are finished.
Then you can set the category of products to display and the number of products to display: