Creating the link / button.
In the window that just appeared, we will enter the complete Web address of the destination of our button. In this example, it is the "Contact" page. Then, in the "Text to display" field, we will write "Contact us", because that is what we want to be entered in the button. Finally, in the "Class" field, choose the "Button" option. Click OK to finish. There you go! It is done!
Note: You will not see a button in the WYSIWYG console.