# AppendFunctionTail ## Description This command appends an arbitrary range of the program to a function definition. A range must be selected before applying this command. This range must not intersect with other function chunks (however, an existing tail can be added to multiple functions). IDA will ask to select the parent function for the selection and will append the range to the function definition. --- # 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.hex-rays.com/ida-actions/appendfunctiontail.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.