---
title: Q&A
date: "2023-07-11T17:00:00.284Z"
description: "Q&A"
---

### If Extensions are not adapted properly

Extensions should ensure that the same Blocks/Marks are not duplicated.
If you wish to extend, please use CustomBlock or CustomMark.
Also, CustomBlocks and CustomMarks have priority over other Blocks/Marks due to their specifications.

