# Access Control Data security and integrity are essential in collaborative environments where multiple users work within a shared space. PowerTable addresses your security requirements by enabling you to configure permissions for rows and columns at a granular level. You can precisely manage who can add, update, or delete rows and columns by specifying their email IDs. PowerTable also lets you set up rule-based access to rows and columns to further customize permissions. This section outlines how to use the **Manage Access** menu to set row and column permissions, allowing or restricting specific users from performing certain actions (add, update, or delete). We'll look at managing both * [row permissions](/explore-powertable/access-control/row-permissions.md) * [column permissions](/explore-powertable/access-control/column-permissions.md) --- # 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.powertable.com/explore-powertable/access-control.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.