Do you want to personalise the survey more and insert your text on the buttons responsible for navigating the it?

Just click on the "Options" button on the given page:

A panel will appear which will allow you to define your own button content:

After inserting the content, all you have to do is to save the changes made.

ATTENTION!

You can change the content of the buttons only for the first, second and last page in the questionnaire.