Please add the following code in 3rd Party Java Script Section for changing the 'Shipping Charges Extra' Text to the required Custom Text on the Product Pages on Layout 2.

Go to Settings --> Advanced Feature --> Third Party Javascript and paste the code.


jQuery(".freehomedel span").html("Text");


Original Product Page looks as shown below:

The output of the code will change the "Shipping Charges Text" to the custom text as shown below: