diff --git a/README.md b/README.md
index 01125d0..ad52220 100644
--- a/README.md
+++ b/README.md
@@ -128,6 +128,7 @@ $this->Htmx->addBlock('userTable');
 The `addBlocks()` function allows you to add multiple blocks to the list of blocks that should be rendered
 ```php
 $this->Htmx->addBlocks(['userTable', 'pagination']);
+$this->Htmx->addBlocks(['userTable', 'pagination'], true); // Appends the blocks to the existing array.
 ```
 
 ### OOB Swap
diff --git a/src/Controller/Component/HtmxComponent.php b/src/Controller/Component/HtmxComponent.php
index b7eff5b..95019df 100644
--- a/src/Controller/Component/HtmxComponent.php
+++ b/src/Controller/Component/HtmxComponent.php
@@ -417,11 +417,16 @@ public function addBlock(string $block): static
     /**
      * Add blocks to render
      *
-     * @param array $block List of block names to render
+     * @param array $blocks List of block names to render
+     * @param bool $append Whether to append the blocks or replace existing ones
      */
-    public function addBlocks(array $block): static
+    public function addBlocks(array $blocks, bool $append = false): static
     {
-        $this->blocks[] = $block;
+        if ($append) {
+            $this->blocks = array_merge($this->blocks, $blocks);
+        } else {
+            $this->blocks = $blocks;
+        }
 
         return $this;
     }