You can use the Combo Blocks plugin to change “Post Excerpt” sources. This article will help you change the sources of “Post Excerpt.”
To begin, insert a “Post Excerpt” block.
Click on the “Post Excerpt” tab.
Now click the “Excerpt Source” button and choose your preferred option.
For Excerpt:
If you choose “Excerpt“, the block will show the Post or Page excerpt.
For Content:
If you choose “Content“, the block will show the Post or Page content.
For Custom Fields:
If you choose “Custom Fields“, you will find some predefined “meta key“. You can use them or add a custom meta key to show your content on the block.
