In this tip we will learn how to enable custom field in wordpress. But first learn what is Custom field in wordpress.
What is Custom Field
In Simple words Custom fields are meta data of your post. It is just like the author information, date of post, category name for any post. Basically this arbitrary information is known as meta data and this information can be any type from author extra information, Thumbnail image location etc.
How to Enable Custom field
You will find some time that you don’t have custom field enable for your wordpress installation. You can click on Screen options as shown in below screenshot on Add new Post screen.
it will open panel like this where you can enable custom field option by clicking the checkbox.
I think it is pretty simple for you. You can find detail information at wordpress custom field section.