When dealing with customers , the first impression is always the last impression. Hence it's important that your best products are always visible on top. You can do so by reordering the products within a catalogue.
Open the desired catalogue
Tap the Edit button at the bottom right of the Catalogue Screen.
You can now reorder the products by holding down the reorder button on the right of each product in the Catalogue Edit Screen.
Hold down the product and drag it to the desired position in the catalogue order.
Once you have arranged the products as per your liking tap the Back button and the new product order will be confirmed.