> ## Documentation Index
> Fetch the complete documentation index at: https://docs.ideatura.ai/llms.txt
> Use this file to discover all available pages before exploring further.

# Prompting

> Choose a model, connect an application, attach references and send your request.

Write what you want Ideatura to do in the message box at the bottom of a chat. Before sending, choose the application and references it needs.

## Choose an AI model

Click the model name beside the message box and select a model from the list. Keep the current model for your first task; you can change it for a later request in the same chat.

Where available, the arrow beside the model opens its thinking-level choices. A higher level gives the model more time to reason and can increase usage. It can help with complex geometry or a task that needs several decisions.

![AI model and thinking-level controls beside the message box.](https://mintcdn.com/ideatura/V8OOHfG85Urp1laS/images/studio-tour/model-effort-closeup.svg?fit=max\&auto=format\&n=V8OOHfG85Urp1laS\&q=85\&s=7a6762f93c5d2a2991b441708e9a4176)

## Select a connected application

Open **Connected Apps** and select the open document you want AI to work on. Check the filename, especially when you have several projects open.

The access label tells you what Ideatura may do in that application. **Full** permits changes. Use the options available for your connection; some modes offer only Full access. For a task using only attached documents, choose **No apps**.

If your application is missing, open its document first. If it still does not appear, follow the [add-in checks](https://docs.ideatura.ai/v2/get-started/updates.md#check-the-add-ins).

## Attach a reference

Click **Attach file** and choose the PDF, image or other document you want to use. Explain its role in your message:

> Use the attached PDF as the source for the room names. Update the names in the connected Revit project; keep the existing room numbers.

You can also attach a markup from a viewer to point at a particular part of a drawing. Use **Skills for this message** to add reusable instructions; see [Standards and skills](https://docs.ideatura.ai/v2/get-started/standards-and-skills.md).

## Send and follow up

Click **Send**. Read the reply and inspect any drawing or model changes. You can continue in the same chat to answer a question or refine the result.

Click the square **Stop** button to interrupt a running request. This stops further work; it does not undo changes already made in the connected application.

For examples of useful requests and corrections, read [How to talk to AI](https://docs.ideatura.ai/v2/get-started/how-to-talk-to-ai.md).


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