Multilingual surveys - unable to translate properties

I created a multilingual survey according to instructions provided here

It went well but I have two questions:

- There are properties such as Survey Description, Footer note, that are not translatable so the text remains in English. Any plan to address this soon?

- Also, I was hoping to create a different English version, in order to change the words "Very Unlikely" and "Very Likely" that appear at the ends of a satisfaction scale to "Strong disagree" and "Strongly agree" which are more appropriate when I do quality satisfaction surveys. 

Any way to substitute the default that is, replace the English(US) default? Just for a given survey.

Thank you!