1. Visit your /wp-admin/

2. Visit Revolution Slider

3. Edit Agent Slider

 

4. You can edit everything there

5. Double click to change the text

6.  You can change Buttons HTML code here:

mceclip0.png

e.g. this way to make buttons redirect to Yahoo and Google:

<div class="mh-slider__buttons"><a href="https://yahoo.com" class="mdl-button mdl-js-button mdl-js-ripple-effect mdl-button--raised mdl-button--white">Yahoo Link</a><a href="https://google.com" class="mdl-button mdl-js-button mdl-js-ripple-effect mdl-button--raised mdl-button--primary">Google Link</a></div>