# Custom Tabs

> Add your own tabs, groups and buttons to the Document Editor ribbon: its HTML and CSS classes, inserting them at ribbonTabsLoaded and handling their clicks.

- **Product:** TX Text Control .NET Server
- **Section:** Documentation
- **Kind:** Topic
- **Path:** TX Text Control .NET Server > Document Editor > Ribbon and UI > Custom Tabs
- **Web URL:** https://docs.textcontrol.com/tx-text-control-dotnet-server/document-editor/ribbon-ui/custom-tabs/
- **LLMs URL:** https://docs.textcontrol.com/tx-text-control-dotnet-server/document-editor/ribbon-ui/custom-tabs/llms.txt
- **LLMs-Full URL:** https://docs.textcontrol.com/tx-text-control-dotnet-server/document-editor/ribbon-ui/custom-tabs/llms-full.txt

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## On This Page

- [How Custom Tabs Work](https://docs.textcontrol.com/tx-text-control-dotnet-server/document-editor/ribbon-ui/custom-tabs/#how-custom-tabs-work)
- [Add a Custom Tab](https://docs.textcontrol.com/tx-text-control-dotnet-server/document-editor/ribbon-ui/custom-tabs/#add-a-custom-tab)
- [Add a Group to a Built-In Tab](https://docs.textcontrol.com/tx-text-control-dotnet-server/document-editor/ribbon-ui/custom-tabs/#add-a-group-to-a-built-in-tab)
- [Add a File Tab](https://docs.textcontrol.com/tx-text-control-dotnet-server/document-editor/ribbon-ui/custom-tabs/#add-a-file-tab)
- [Custom Tabs in Other Frontends](https://docs.textcontrol.com/tx-text-control-dotnet-server/document-editor/ribbon-ui/custom-tabs/#custom-tabs-in-other-frontends)
- [Next Steps](https://docs.textcontrol.com/tx-text-control-dotnet-server/document-editor/ribbon-ui/custom-tabs/#next-steps)

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## Nearby

- **Previous:** [Context Menus](https://docs.textcontrol.com/tx-text-control-dotnet-server/document-editor/ribbon-ui/context-menus/llms.txt)
- **Next:** [Localization](https://docs.textcontrol.com/tx-text-control-dotnet-server/document-editor/ribbon-ui/localization/llms.txt)