diff --git a/Add-own-functionality.md b/Add-own-functionality.md
index daacd3d..12af1bd 100644
--- a/Add-own-functionality.md
+++ b/Add-own-functionality.md
@@ -39,4 +39,12 @@ void userLoop()
     //do something you want to do every 2 seconds
   }
 }
-```
\ No newline at end of file
+```
+
+### Internal Segments API
+
+TBD
+
+### Create custom effects
+
+TBD
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