你能解释一下为什么它不起作用吗？我刚刚测试了一下，添加类似以下内容时完全正常：
\io1 第一部分 \xt MAT 1:1\xt*
--------------
这并没有直接回答你的问题，但你提到了主题索引，然后提到了通常用于引言大纲的标记（\io#）。如果你混合使用了引言标记（以 \i 开头的标记）和常规文本中使用的标记（如 \p 等），那可能就是这个问题的原因。
请参阅此处，了解如何使用 \k 标记（与词汇表中使用的相同关键词标记）来布局主题索引的示例。
https://docs.usfm.bible/usfm/3.1/periph/book-tdx.html
Can you explain how it isn't working? I just tested and adding something like this worked perfectly fine:
\io1 First section \xt MAT 1:1\xt*
--------------
Not directly answering your question, but you talk about a topical index and then talk about markers (\io#) typically used for introductory outlines. It's maybe possible that if you're mixing introductory markers (ones starting with \i) along with markers used in regular text (like \p or the like), that that's the problem.
See here for an example of how topical indexes might be laid, out, using \k markers (the same keyword marker used in glossaries).
https://docs.usfm.bible/usfm/3.1/periph/book-tdx.html
机器翻译自 English
