Display Pie Calendar Meta Fields in Admin Edit Screens via Admin Columns

Admin Columns is a plugin that allows you to display additional data, or alter the data already displayed, on WordPress admin panel post lists.

It's easy to display Pie Calendar information in the WordPress admin columns for a given post type using this plugin. Here's how:

1. Install Admin Columns
2. Go to Settings > Admin Columns in the WordPress admin panel
3. Choose the post type you want to add the column(s) to
4. At the bottom of the list of default columns, click "+ Add Column"
5. For the Column type, choosed "Custom Field"
6. Add a label (this can be anything you choose)
7. For the Field, choose the appropriate Pie Calendar field:
   1. _piecal_start_date
   2. _piecal_end_date
8. For the Field Type, choose "Date"
9. For Stored Date Format, choose "Auto Detect"
10. Choose the Display Date Format you want to use to display the Pie Calendar date
11. Adjust any other settings as needed
12. Save your changes

Now, the chosen Pie Calendar fields will be displayed as columns in the WordPress admin post list for the given post type.