Hook um_admin_pre_save_field_to_form

um_admin_pre_save_field_to_form.php

<?php

/**
 * Hook: um_admin_pre_save_field_to_form
 *
 * Type: filter
 *
 * Description: Change field data before save to form.
 *
 * @example https://github.com/ultimatemember/ultimatemember/blob/master/includes/admin/core/class-admin-builder.php#L725
 * @link    https://docs.ultimatemember.com/article/1000-umadminpresavefieldtoform
 *
 * @package um\admin\core
 * @see     um\admin\core\Admin_Builder::update_field()
 * @since   2.0
 * @version 3.0
 *
 * @param array $field_args Field data.
 *
 * @return array Field data.
 */
function my_admin_pre_save_field_to_form( $field_args ) {
	// your code here.
	return $field_args;
}
add_filter( 'um_admin_pre_save_field_to_form', 'my_admin_pre_save_field_to_form', 10, 1 );