diff --git a/blueprints/default.yaml b/blueprints/default.yaml
index f995948..f771cb0 100755
--- a/blueprints/default.yaml
+++ b/blueprints/default.yaml
@@ -45,4 +45,13 @@ form:
                     1: PLUGIN_ADMIN.ENABLED
                     0: PLUGIN_ADMIN.DISABLED
                   validate:
-                    type: bool
\ No newline at end of file
+                    type: bool
+        advanced:
+          fields:
+            columns:
+              fields:
+                column1:
+                   fields:
+                     header.body_classes:
+                       markdown: true
+                       description: 'Available classes in Future2021 Theme:<br />`single`'
\ No newline at end of file