# Add tags and classifications to fields Add tags and classifications to your tables so that others in your team can understand the purpose and usage of each column within your data source. This functionality is available in the Schema tab within the Asset Details section. In the Schema tab, you can see each column within your selected table and edit the row via the kebab menu at the end of each row.

{% hint style="info" %} To make changes to the Schema tab, you need at least Edit access for the asset, which comes from the "Asset Details" policy. [Learn about source-based policies.](https://docs.decube.io/group-access-policies/source-based-policies) {% endhint %} ### Creating, adding, and removing tags You can create a custom tag by directly keying in the name into the field. A "Create tag" option will appear at the bottom of the dropdown.

To apply the same tag to another asset, open the dropdown again and select the tag. To remove a tag, click the `x` icon at the end of it. ### Adding classifications Add a classification to the field by selecting from the available dropdown. Adding a classification in this view also adds the classification to the column asset on the Catalog view. --- # 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.decube.io/catalog/add-tags-and-classifications-to-fields.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.