allow content keys to hold more than one value, which will transform the value into an array

app/modules/filesinfolders.php

     function get_config_from_content($string) {
         $f3 = \Base::instance();
         $f = 0;
-
+        $tmp = null;
+        
         $pattern = "/#\+(\w+):\s?(.*)/";
         $f = preg_match_all($pattern, $string,$matches,PREG_PATTERN_ORDER);
         for ($i=0;$i<$f;$i++) {
                     $this->config[$key]=$value;
                 }
             } else {
-                $this->config[$key]=$value;
+                if (array_key_exists($key, $this->config)) {
+                    if (is_array($this->config[$key])) {
+                        $this->config[$key][]=$value;
+                    } else {
+                        $tmp = $this->config[$key];
+                        $this->config[$key] = [$tmp,$value];
+                        $tmp=null;
+                    }
+                } else {
+                    $this->config[$key]=$value;
+                }
             }
         }