You have created a page for Sales products and you can add sorting only to this page. The shop page is the functional page and it should not be edited.
Yes I had did exactly like that. But the filter form (which is placed on the custom page for sale products) instead of filtering the sale products filters all the products and opens the Shop page with the results. I need to filter only the products on the custom sales page.
2) Can I get to display this functionality (please see attached image) above the products on my Sale products page.
Thanks
The filters sort out all the products not only sales. There is no option to set the sorting of our sales product only. You can set a certain category however no option to set the product status.
The functionality shown on your page is provided by Woocommerce on the shop page only. Unfortunately, there is no option to add the same on other pages.