having for custom post type "event" the avia-post-nav too

well the function itself is with (if(!function_exists('avia_post_nav')) ) – so a copy of the whole function in child-theme functions.php will overwrite the whole thing.
i can set here after

$settings['type'] = get_post_type();
$settings['taxonomy'] = ($settings['type'] == 'portfolio') ? 'portfolio_entries' : $taxonomy;
$settings['taxonomy'] = ($settings['type'] == 'event') ? 'event-categories' : $taxonomy;

than it will work for events – but portfolio support is than away.
i do not see how to set here an if clause (if $settings[‘type’] == ‘event’ etc …)

if i change that code to code above.
the events will have post-nav – but portfolio post-nav is gone.
i’m not so familiar with ternary operator – how can I formulate the code?

i transformed it to events manger :

add_filter( 'avia_post_nav_entries', 'avia_post_nav_settings_mod', 10, 1); 
function avia_post_nav_settings_mod($settings) {
    if(is_singular('event')) {
		$settings['taxonomy'] = 'event-categories';
	}
    return $settings;
}

but with no luck. There is on the left side a look alike button which slides out – but it shows the actual event and click leads to itself.

From my part yes – but customer allready has a working account to edit Pages and Posts –
– because I’m interested in it in general, I just wanted to create your own test environment. There it works without further adjustment. Therefore, I will now first look at why it goes in one installation and the other not.

i inserted this code – and it works with an if clause

add_filter('avia_post_nav_settings', 'avia_post_nav_settings_mod');
function avia_post_nav_settings_mod($settings)
{
  if(is_singular('portfolio')) {
    $settings['taxonomy'] = 'portfolio_entries';
    $settings['same_category'] = true;}
  if(is_singular('event')) {
    $settings['taxonomy'] = 'event-categories';
    $settings['same_category'] = true;}
  return $settings;
}

can be closed !