WordPress at a glance
filter is not described

manage_(screen_id)_columns filter-hook . WP 3.0.0

Filters the column headers for a list table on a specific screen.

The dynamic portion of the hook name, $screen->id, refers to the ID of a specific screen. For example, the screen ID for the Posts list table is edit-post, so the filter for that screen would be manage_edit-post_columns.

Usage

add_filter( 'manage_(screen_id)_columns', 'filter_function_name_1098' );
function filter_function_name_1098( $columns ){
	// filter...

	return $columns;
}
$columns(array)
An array of column headers.
Default: ''

Where the hook is called

get_column_headers()
wp-admin/includes/screen.php 39
$column_headers[ $screen->id ] = apply_filters( "manage_{$screen->id}_columns", array() );

Where the hook is used (in WP core)

wp-includes/customize/class-wp-customize-nav-menus-panel.php 37
add_filter( 'manage_nav-menus_columns', 'wp_nav_menu_manage_columns' );
wp-admin/includes/class-wp-list-table-compat.php 27
add_filter( 'manage_' . $screen->id . '_columns', array( $this, 'get_columns' ), 0 );
wp-admin/includes/nav-menu.php 145
add_filter( 'manage_nav-menus_columns', 'wp_nav_menu_manage_columns' );
wp-admin/includes/class-wp-list-table.php 134
add_filter( "manage_{$this->screen->id}_columns", array( $this, 'get_columns' ), 0 );