Selecting a row in a grid

Hi Guys

The website that I'm testing has this scenario: I have a grid that returns a lot of itens, and when I click in one of these, that item is immediataly presented on the other fields of the same screen, with all the information of it.

But, my problem is, every time I create a new item, the position of the itens change on the grid, so, I would like to know... Is there any way that I can select an specific row on the grid? for example, everytime that I run my test I would like to select the item number 5, does not matter the positon of the item on the screen, I want always to select the item 5, is there anyway that I can do that?

Thank you very much!