You can add a “Read More” button to any post by following the instructions on this page. Below is an excerpt of the official guidance:
You can add the tag to any position in your posts by using the button shown below in the post editor screen:
You can also change the text in the button to anything you like, such as “View Post” or “Continue reading…”. You can do this by editing the “Blog Posts” gadget found in your Layout:
Automatic Read More Layout
If you would like your template to automatically add a “read more” button to all posts, we can install this for you as an extra feature. Please contact us if you decide to purchase this extra feature, so that we can install it for you.