Select 'Pages', 'New Pages', 'Select a Page Layout', and finally, 'Custom Link', 'Create'
How do I create an internal link out?
Select 'Link to existing page' and choose the page you would like to link out to from the drop down menu;
Below the drop-down menu, you will notice the option to select “Open in a new window”. Should you select this, your website will open the selected link in a new browser window, keeping the old window open.
How do I create an external link out?
Select 'Link to custom URL' and enter the website URL you would like to link out to.