diff --git a/heroscript/tfgrid4/book_collections.md b/heroscript/tfgrid4/book_collections.md
index f26c301..b78ff8a 100644
--- a/heroscript/tfgrid4/book_collections.md
+++ b/heroscript/tfgrid4/book_collections.md
@@ -1,46 +1,10 @@
 
-
 ```js
-
-!!book.generate name:'tfgrid4' title:'TFGrid Internet 4.0'
-        url:'https://git.ourworld.tf/tfgrid/info_tfgrid/src/branch/main/books/tfgrid4'
-
-
-!!doctree.add
-    url:'https://git.ourworld.tf/tfgrid/info_tfgrid/src/branch/main/collections/bestkeptsecret'
-
-!!doctree.add
-    url:'https://git.ourworld.tf/tfgrid/info_tfgrid/src/branch/main/collections/why'
-
-!!doctree.add
-    url:'https://git.ourworld.tf/tfgrid/info_tfgrid/src/branch/main/collections/farming_v4'
-
-!!doctree.add
-    url:'https://git.ourworld.tf/tfgrid/info_tfgrid/src/branch/main/collections/economy'
-
-!!doctree.add
-    url:'https://git.ourworld.tf/tfgrid/info_tfgrid/src/branch/main/collections/p2p'
-
-!!doctree.add
-    url:'https://git.ourworld.tf/tfgrid/info_tfgrid/src/branch/main/collections/partners_utilization'
-
-!!doctree.add
-    url:'https://git.ourworld.tf/tfgrid/info_tfgrid/src/branch/main/collections/solutions'
-
-!!doctree.add
-    url:'https://git.ourworld.tf/tfgrid/info_tfgrid/src/branch/main/collections/web4'
-
-!!doctree.add
-    url:'https://git.ourworld.tf/tfgrid/info_tfgrid/src/branch/main/collections/tech'
-
-!!doctree.add
-    url:'https://git.ourworld.tf/tfgrid/info_tfgrid/src/branch/main/collections/values'
-
-!!doctree.add
-    url:'https://git.ourworld.tf/tfgrid/info_tfgrid/src/branch/main/collections/problems'
-
-!!doctree.add
-    url:'https://git.ourworld.tf/tfgrid/info_tfgrid/src/branch/main/collections/dy_intro'
-
+!!mdbook.export 
+    title:'TFGrid Internet 4.0' 
+    description:'TFGrid V4 mdbook'
+    name:'tfgrid4' 
+    summary_url:'https://git.ourworld.tf/tfgrid/info_tfgrid/src/branch/main/books/tfgrid4'
+    collections:'bestkeptsecret, why, farming_v4, economy, p2p, partners_utilization, solutions, web4, tech, values, problems, dy_intro' 
+    production:0 //means we put it in summary
 ```
-