Display multiple fields in same line for Sanity preview

Yes, you can definitely display multiple fields on the same line in a preview! The prepare function in your preview configuration lets you combine multiple fields into a single string for either the title or subtitle.

Here's a common pattern for combining fields:

preview: {
  select: {
    firstName: 'firstName',
    lastName: 'lastName',
    email: 'email'
  },
  prepare({firstName, lastName, email}) {
    return {
      title: `${firstName} ${lastName}`,
      subtitle: email
    }
  }
}

If you want to combine even more fields into one line, you can do something like:

preview: {
  select: {
    title: 'title',
    category: 'category.title',
    status: 'status'
  },
  prepare({title, category, status}) {
    return {
      title: title,
      subtitle: `${category} • ${status}`  // Combines multiple fields with a separator
    }
  }
}

Important note: The preview system in Sanity only supports three properties in the returned object from prepare:

• title (string)
• subtitle (string)
• media (image or icon)

So you can't add additional custom fields to display more lines. However, you can combine as many of your schema fields as you want into these three properties using string concatenation, template literals, or any JavaScript logic.

If you're getting an error, it might be because you're trying to return additional properties beyond these three, or there's a syntax issue in your prepare function. Could you share your specific code? That would help identify the exact issue.

You can read more about this in the official Sanity documentation on previews and list views, and there's also a great guide on creating richer array item previews that shows more advanced examples.