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

# Frequently asked questions

> Quick answers about sign-in, quota, models, integrations, notifications, and files.

This page collects common Otterflow questions and points to the full chapter for each topic. For an error or activation failure, go to [Troubleshooting](/en/help/troubleshooting).

## I cannot sign in, or my quota is insufficient

Check that your network can reach Otterflow. If access is restricted in your region, configure a proxy and try again. Check remaining quota and usage trends in [Account and billing](/en/settings/account-and-billing).

## How do I switch AI models or add my own?

Open **Settings → Model services**. Enable a built-in model or add a custom model with its model ID, API key, endpoint, context window, and protocol. See [Model services](/en/settings/model-services).

## The Word add-in will not install or is missing

Use Word 2022 or later, or Microsoft 365. Enable the capability only after the compatibility check succeeds; the installed add-in is called **FlowaveWord** and appears on Word's Home tab. See [Word integration](/en/document-integrations/word-integration) and [Troubleshooting](/en/help/troubleshooting).

## LaTeX compilation failed

Confirm that the LaTeX capability is enabled and that the local component completed its first download and startup. Then inspect the project source and compilation message. See [LaTeX editing and local compilation](/en/document-integrations/latex-and-overleaf).

## The network is slow or unavailable

Configure a system or custom proxy in Settings. The proxy page displays current connection state and stores entries locally. See [General, notifications, proxy, and appearance](/en/settings/general-notifications-proxy-appearance).

## I do not receive notifications

Check the master notification switch, notification level, and individual category switches. Send a test notification, then check your operating system's Focus or Do Not Disturb mode.

## How do I change the interface language?

Open **Settings → General** and choose Chinese or English. The change applies immediately.

## Where are my files stored?

Files are stored in the workspace folder you created or opened. Removing a workspace from Recents only removes the list entry; it does not delete files on disk. See [Projects and workspaces](/en/core-features/projects-and-workspaces).

## Can I add information while AI is responding?

Yes. Send another message using **Queue** to wait for the reply, or **Guide** to steer generation at its next safe boundary. See [AI writing](/en/core-features/ai-writing).

## See also

* [Troubleshooting](/en/help/troubleshooting)
* [Account and billing](/en/settings/account-and-billing)
* [Model services](/en/settings/model-services)
* [Capability management](/en/settings/capability-management)