You can link the “Post Title” to the “Custom URL” using the Post Grid Combo plugin. This article will help you link the “Post Title” to the Custom URL.
To begin, insert a “Post Title” block.
Click on the “Post Title” tab.
Now choose “Custom URL” from “Link to” to link the post title to the custom URL.
To add the custom link, click on the “Custom URL” link button and add the link here.