In order to use the built in databinding in the ui you would have to put each value in it's own context parameter.
I suppose if you were going to execute a coded web test you could use an extraction rule that added a bunch of context parameters and then pull them out and bind them to the appropriate request parameters in your code.
a custom extraction rule would work... but I am not sure how to remove text from response like the built in extract text works... I think it uses regular expressions but I am not sure... anyway know code to extract text from a html response using a starts with and ends with would be nice.
The current extract text rule lets you specify a starts with and ends with string. This will extract the text between the to delimiters and place it into a context parameter.