# New Columns - [Compare](https://resources.less.tech/less-tech/modelling/action-guides/new-columns/compare.md): Move values vertically - [Cumulative](https://resources.less.tech/less-tech/modelling/action-guides/new-columns/cumulative.md): Perform cumulative calculations - [Date Difference](https://resources.less.tech/less-tech/modelling/action-guides/new-columns/date-difference.md): Calculate difference in time between two dates - [Date Format](https://resources.less.tech/less-tech/modelling/action-guides/new-columns/date-format.md): Extract date formats from date - [Date Math](https://resources.less.tech/less-tech/modelling/action-guides/new-columns/date-math.md): Add or subtract days, seconds or hours from existing date columns - [Difference](https://resources.less.tech/less-tech/modelling/action-guides/new-columns/difference.md): Vertically calculate the difference between rows - [Calculate](https://resources.less.tech/less-tech/modelling/action-guides/new-columns/calculate.md): Calculate your way to new columns - [IF Column](https://resources.less.tech/less-tech/modelling/action-guides/new-columns/if-column.md): Create new columns with conditions - [Text Column](https://resources.less.tech/less-tech/modelling/action-guides/new-columns/text-column.md): Create new text columns - [Parse JSON](https://resources.less.tech/less-tech/modelling/action-guides/new-columns/parse-json.md): Convert nested JSON to new columns - [Row ID](https://resources.less.tech/less-tech/modelling/action-guides/new-columns/row-id.md): Add a Row ID column to your dataset - [Running Interval](https://resources.less.tech/less-tech/modelling/action-guides/new-columns/running-interval.md): Perform interval calculations - [Split Columns](https://resources.less.tech/less-tech/modelling/action-guides/new-columns/split-columns.md): Split columns to rows or columns by a delimiter --- # 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://resources.less.tech/less-tech/modelling/action-guides/new-columns.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.