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Do you think it’ s possible to extend the class-metabox.php with the two filters from the following code ?
With this it’s possible to use the avia-metabox functions to add custom boxes and elements.
And i think this is a default script wich is used in a lot of themes.
The code starts at line 110
//load the options array
include( AVIA_BASE . '/includes/admin/register-admin-metabox.php' );
//apply filters to extend the default option arrays
$boxes = apply_filters('avia_meta_box_add_boxes', $boxes);
$elements = apply_filters('avia_meta_box_add_elements', $elements);
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