Thanks for asking.
If you are using Pro Theme for this project (I see that you have Pro Theme licence) and header builder then along side hamburger menu, you can add a button or text element. Change the text and under Link > URL (for button element) add the link of Page over here. If you wish to use text element then you can click on Insert/edit link option to link the text.
Here is a screencast that you can take a look.