使用 按钮来显示/隐藏效果混合器（俗称混音器、混音台）。
LMMS 提供了一个小笔记本，您可以在这里面写一些有用的信息。这些信息是跟随在项目里的，所以您写的东西也可以被别人看到。
工程注释有以下功能可以使用：
* 字体
* 字号（字体大小）
* 加粗
* 倾斜
* 下划线
* 文本对齐方式
* 文本颜色
* 撤销
* 重做
* 复制
* 剪切
* 粘贴
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# Agent Instructions: Querying This Documentation
If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.
Perform an HTTP GET request on the current page URL with the `ask` query parameter:
```
GET https://docs.lmms.io/user-manual/jian-ti-zhong-wen/shu-xi-lmms/gong-cheng-zhu-shi.md?ask=
```
The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.
Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.