# Show CodeGen Preview ### Introduction This option controls whether generated code is displayed in the Code tab. If checked, generated code is displayed and is updated whenever a change is made in Gum. Usually this option can remain checked even if you are not using generated code; however, very large components and screens may generate a large amount of code, which can slightly affect Gum's performance when selecting objects or making changes. If you are experiencing slowdowns and you do not need code to be generated, you can uncheck this option. --- # 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.flatredball.com/gum/gum-tool/code-tab/show-codegen-preview.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.