Passing a value from the URL to a field in a Nintex Form with using Office365

Hello All,

I am new to Nintex Forms and will be grateful to any help. I am using Office 365 and Nintex forms. I have managed to grab query string variable from the URL and I need to put this information into a field in the form. Does any one know a way to do this?

I am currently using Query String to get the data form the URL but can not assign it into a field. If there is another way all together that would be useful too.

 Thank you in advance.