Hi Max - there definitely is.

You can manually append the URL parameters that will be generated to your URL and then reload the page and you’ll be able to see that applied to the dynamic text parameters.

So, for example, if your DTR parameter is “color” and your URL is www.mypage.com, just enter http://www.mypage.com?color=red into your URL bar and you’ll see “red” as the value for anywhere you’ve set that color parameter on the page.