How do I code a 17x1 array of data into a pop up menu as choices of selection? Also, how do I code that when one of these choices are selected, 5 edit text fields change at the same time?

I have a 17x1 array of data that has 17 rows of data that I would like to plug into a drop down pop up menu that let's you make a selection. Also, how can I code that when one of these is selected, 5 edit text fields also change their values accordingly, all of them also having their data stored in 17x1 arrays. I am designing a GUI using GUIDE and due to an error in the above by pop up menu is not visible anymore. Any help is appreciated.