diff --git a/docs/reference/processors.md b/docs/reference/processors.md
index 7375b25b..73e3fbfd 100644
--- a/docs/reference/processors.md
+++ b/docs/reference/processors.md
@@ -7,6 +7,34 @@ For improvements head over to [GitHub](https://github.com/zircote/swagger-php) a
 
 *Processors are listed in the default order of execution.*
 
+## Processor Configuration
+### Command line
+The `-c` option allows to specify a name/value pair with the name consisting
+of the processor name (starting lowercase) and  option name separated by a dot (`.`).
+
+```shell
+> ./bin/openapi -c operatinId.hash=true // ...
+> ./bin/openapi -c pathFilter.tags[]=/pets/ -c pathFilter.tags[]=/store/ // ...
+```
+
+### Programmatically with PHP
+Configuration can be set using the `Generator::setConfig()` method. Keys can either be the same
+as on the command line or be broken down into nested arrays.
+
+```php
+(new Generator())
+    ->setConfig([
+        'operationId.hash' => true,
+        'pathFilter' => [
+            'tags' => [
+                '/pets/',
+                '/store/',
+            ],
+        ],
+    ]);
+```
+
+
 ## Default Processors
 ### [DocBlockDescriptions](https://github.com/zircote/swagger-php/tree/master/src/Processors/DocBlockDescriptions.php)
 
@@ -62,7 +90,7 @@ Augments shared and operations parameters from docblock comments.
 #### Config settings
 <dl>
   <dt><strong>augmentParameters.augmentOperationParameters</strong> : <span style="font-family: monospace;">bool</span></dt>
-  <dt><strong>default</strong> :  : <span style="font-family: monospace;">true</span></dt>
+  <dt><strong>default</strong> : <span style="font-family: monospace;">true</span></dt>
   <dd><p>If set to <code>true</code> try to find operation parameter descriptions in the operation docblock.</p>  </dd>
 </dl>
 
@@ -82,7 +110,7 @@ Generate the OperationId based on the context of the OpenApi annotation.
 #### Config settings
 <dl>
   <dt><strong>operationId.hash</strong> : <span style="font-family: monospace;">bool</span></dt>
-  <dt><strong>default</strong> :  : <span style="font-family: monospace;">true</span></dt>
+  <dt><strong>default</strong> : <span style="font-family: monospace;">true</span></dt>
   <dd><p>If set to <code>true</code> generate ids (md5) instead of clear text operation ids.</p>  </dd>
 </dl>
 
@@ -102,12 +130,12 @@ All filter (regular) expressions must be enclosed within delimiter characters as
 #### Config settings
 <dl>
   <dt><strong>pathFilter.tags</strong> : <span style="font-family: monospace;">array</span></dt>
-  <dt><strong>default</strong> :  : <span style="font-family: monospace;">[]</span></dt>
+  <dt><strong>default</strong> : <span style="font-family: monospace;">[]</span></dt>
   <dd><p>A list of regular expressions to match <code>tags</code> to include.</p>  </dd>
 </dl>
 <dl>
   <dt><strong>pathFilter.paths</strong> : <span style="font-family: monospace;">array</span></dt>
-  <dt><strong>default</strong> :  : <span style="font-family: monospace;">[]</span></dt>
+  <dt><strong>default</strong> : <span style="font-family: monospace;">[]</span></dt>
   <dd><p>A list of regular expressions to match <code>paths</code> to include.</p>  </dd>
 </dl>
 
@@ -118,7 +146,7 @@ Tracks the use of all <code>Components</code> and removed unused schemas.
 #### Config settings
 <dl>
   <dt><strong>cleanUnusedComponents.enabled</strong> : <span style="font-family: monospace;">bool</span></dt>
-  <dt><strong>default</strong> :  : <span style="font-family: monospace;">false</span></dt>
+  <dt><strong>default</strong> : <span style="font-family: monospace;">false</span></dt>
   <dd><p>Enables/disables the <code>CleanUnusedComponents</code> processor.</p>  </dd>
 </dl>
 
diff --git a/tools/procgen.php b/tools/procgen.php
index f6018dda..cd3992cf 100644
--- a/tools/procgen.php
+++ b/tools/procgen.php
@@ -9,8 +9,44 @@
 ob_start();
 
 echo $procgen->preamble('Processors');
-echo PHP_EOL . '## Default Processors' . PHP_EOL;
 
+echo PHP_EOL . '## Processor Configuration' . PHP_EOL;
+
+echo '### Command line' . PHP_EOL;
+echo <<< EOT
+The `-c` option allows to specify a name/value pair with the name consisting
+of the processor name (starting lowercase) and  option name separated by a dot (`.`).
+
+```shell
+> ./bin/openapi -c operatinId.hash=true // ...
+> ./bin/openapi -c pathFilter.tags[]=/pets/ -c pathFilter.tags[]=/store/ // ...
+```
+
+
+EOT;
+
+echo '### Programmatically with PHP' . PHP_EOL;
+echo <<< EOT
+Configuration can be set using the `Generator::setConfig()` method. Keys can either be the same
+as on the command line or be broken down into nested arrays.
+
+```php
+(new Generator())
+    ->setConfig([
+        'operationId.hash' => true,
+        'pathFilter' => [
+            'tags' => [
+                '/pets/',
+                '/store/',
+            ],
+        ],
+    ]);
+```
+
+
+EOT;
+
+echo PHP_EOL . '## Default Processors' . PHP_EOL;
 foreach ($procgen->getProcessorsDetails() as $ii => $details) {
     $off = $ii + 1;
     echo $procgen->formatClassHeader($details['name'], 'Processors');
@@ -26,7 +62,7 @@
 
                 echo '<dl>' . PHP_EOL;
                 echo '  <dt><strong>' . $configPrefix . $name . '</strong>' . $var . '</dt>' . PHP_EOL;
-                echo '  <dt><strong>default</strong> : ' . $default . '</dt>' . PHP_EOL;
+                echo '  <dt><strong>default</strong>' . $default . '</dt>' . PHP_EOL;
                 echo '  <dd>';
                 echo '<p>' . nl2br($odetails['phpdoc'] ? $odetails['phpdoc']['content'] : ProcGenerator::NO_DETAILS_AVAILABLE) . '</p>';
                 echo '  </dd>' . PHP_EOL;