# Add or delete lines and parts
### ▶️ Add lines or parts
You can either do this inline by tapping the following icon at the end of your song:
Or you can enter a dedicated "structure edit" mode by tapping this icon:
###
### ▶️ Copy and delete lines or parts
To **copy a part**, tap on the part label, then on "Copy or Delete".
To **copy a line**, tap on the line repeat at the end of the line, then on "Copy or Delete".
---
# 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://guide.tonaly.app/songwriting/edit-song-structure/add-or-delete-lines-and-parts.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.
