Add AI prompt support for selected text in AI plugin

[Isaina]

Hi ONLYOFFICE team,

I love the AI plugin in ONLYOFFICE Desktop Editor. Currently, actions like “Make longer”, “Rewrite”, or “Translate” apply to entire paragraphs or the full document.

It would be extremely useful to have prompt functionality directly on selected text, so that users can:
• Select a portion of text.
• Apply an AI action with a custom prompt, e.g., “Translate to English”, “Make longer”, or “Rewrite in formal style”.
• Have the AI generate output inline, replacing or appending only to the selected text.

This feature would greatly enhance usability for creative writing, translations, and text editing workflows.

Thank you for considering this enhancement!

Best regards,

[Dmitry-Kov]

Hello @Isaina,

Thanks for the suggestion! The functionality you’re requesting is planned and should arrive soon. Please follow this issue for updates — I’ll notify you here once it’s available.

[Dmitry-Kov]

Hello @Isaina,
Great news! The functionality you requested has been implemented with the AI Inline Agent feature.
How to use it:

Select a portion of text in your document
Press Ctrl + / to open the AI agent input
Type your custom prompt (e.g., "Translate to English", "Make longer", "Rewrite in formal style")
Press Enter — the AI will process your selection and apply the result

The agent is context-aware: when text is selected, it applies actions specifically to that selection. You can also use conversation history to refine results step by step.
Documentation:

Meet the new AI agent for ONLYOFFICE
AI agent (beta) — API documentation

Please update your AI plugin to the latest version and let us know if this meets your needs. Feel free to reopen this issue if you have any questions or suggestions for improvement.