Adds ACF Field Group location rule for Post Type Support.

acf-post-type-supports.php

<?php
/**
 * Plugin Name: Field Group Location: Post Type Supports
 * Plugin URI: http://qwp6t.me/acf-post-type-supports
 * Description: Adds ACF Field Group location rule for Post Type Support. NOTE: You must first declare the supported feature in your theme.
 * Version: 1.0.0
 * Author: QWp6t
 * Author URI: http://qwp6t.me
 * License: MIT License
 */

add_filter('acf/location/rule_types', function ($choices) {
  $choices[__('Post', 'acf')]['post_type_supports'] = __('Post Type Supports', 'qwp6t');
  return $choices;
});

add_filter('acf/location/rule_values/post_type_supports', function ($choices = []) {
  foreach ($GLOBALS['_wp_post_type_features'] as $post_type) {
    foreach ($post_type as $feature => $args) {
      $choices[$feature] = $feature;
    }
  }
  $choices = array_unique($choices);
  asort($choices);
  return $choices;
}, 10, 1);

add_filter('acf/location/rule_match/post_type_supports', function ($match, array $rule, array $options) {
  if (!$options['post_id'] || $match) {
    return false;
  }
  $post_type = $options['post_type'] ?: get_post_type($options['post_id']);
  $match = post_type_supports($post_type, $rule['value']);
  return ($rule['operator'] == "!=") ? !$match : $match;
}, 10, 3);

Add this somewhere in your theme...

add_post_type_support('page', 'hero');

The hero designation is arbitrary. Just make up a name for whatever feature you're creating. Typically you would want it to correspond to the Field Group name in ACF. Hero was just the example I initially gave.

🎵 did you ever know that you're my hero

@QWp6t I don't think I'm fully understanding the use case. Could you elaborate on the advantages of using this method versus using multiple rules based on Post Type?

For example if both Posts and Pages supported hero, could I not create the same result with two rules for "If Post Type is equal to Post" and "If Post Type is equal to Page"?