Portfolio Grid Display Order

Hi!

I bought the Enfold Theme several weeks ago.
I am very happy with this theme, but unfortunately I have a little big problem …

On the website we have a overview about our products (~20 products).
I created a protfolio entry for every product. All entrys will be displayed in a portfolio grid (4 columns).

Now we want to sort the products from the cheapest to the most expensive product.
But I didn’t find any option to sort the products this way.

Is there any chance to sort the products regarding their price? (or any other attribute? … hopefully without changing something in any PHP file.)
(I just read this link: http://kriesi.at/documentation/enfold/how-to-add-an-orderorderby-option-to-the-blogpost-sliderportfoliomasonry-grid-element/ but it seems like it also doesn’t solve my problem. It’s always possible that we will adjust the price and the order should change according to the new price.)