> For the complete documentation index, see [llms.txt](https://resources.less.tech/less-tech/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://resources.less.tech/less-tech/modelling/action-guides/basics.md).

# Basics

- [Input](https://resources.less.tech/less-tech/modelling/action-guides/basics/input.md): Bring data to the Canvas
- [Output](https://resources.less.tech/less-tech/modelling/action-guides/basics/output.md): Store the output of your workflow as a new table
- [Fill](https://resources.less.tech/less-tech/modelling/action-guides/basics/fill.md): Handle nulls or empty cells in your data set
- [Filter](https://resources.less.tech/less-tech/modelling/action-guides/basics/filter.md): Make rules that removes rows
- [Formats](https://resources.less.tech/less-tech/modelling/action-guides/basics/formats.md): Change the data format of columns
- [Limit](https://resources.less.tech/less-tech/modelling/action-guides/basics/limit.md): Reduce the number of rows in your data set
- [Rename](https://resources.less.tech/less-tech/modelling/action-guides/basics/rename.md): Rename your columns
- [Replace](https://resources.less.tech/less-tech/modelling/action-guides/basics/replace.md): Replace text values in one or multiple columns
- [Pick](https://resources.less.tech/less-tech/modelling/action-guides/basics/pick.md): Select the columns you want to keep
- [Sort](https://resources.less.tech/less-tech/modelling/action-guides/basics/sort.md): Sort your data
- [Text Transform](https://resources.less.tech/less-tech/modelling/action-guides/basics/text-transform.md): Change how your text columns looks
- [Unique](https://resources.less.tech/less-tech/modelling/action-guides/basics/unique.md): Remove duplicates