Open Link in A New Tab
When you install hyperlinks in text or buttons on a page or post within WordPress, it's good to have that link open the page or site in another browser tab. This means people simply close the tab to return to your WordPress page or post, rather than having to use the back button.
Click the Cog next to the link when first you create it, or edit it.
In the following dialog/options box, click “Open Link in New Tab.”