How do I tell Lovable to only edit one section?

Name the target precisely

The more specific the reference, the less room there is for Lovable to touch anything else:

On the /pricing page, change only the heading text of the middle pricing card to "Most popular". Leave the layout, the other two cards, and every other page unchanged.

Vague references ("the pricing section" when there are several) invite guesswork; naming the route, component name (if you know it from the Code editor), or exact copy currently on screen removes ambiguity.

Use the preview toolbar to select the element

Rather than describing location in words, use Preview's toolbar to click the exact element you mean and leave a comment or instruction directly on it. This is often faster and more accurate than a text description, especially on visually similar repeated components (e.g. one card among many).

Add an explicit scope boundary

Even with a precise target, add the boundary sentence: "don't change anything else on this page" or "don't touch other pages". This matters most when the section shares a component with other places in the app — editing a shared Card component, for instance, can affect every page that uses it unless you ask for a page-specific override instead.

What usually goes wrong

• Shared components change everywhere. If "the pricing card" is actually the same component used on the homepage too, editing it there changes both. Ask Lovable to confirm whether the component is shared, or explicitly request a separate variant.
• Ambiguous ordinal references ("the second section") break when the page layout shifts between prompts — refer to visible text or use the preview toolbar selection instead.
• Forgetting the boundary sentence on a prompt that seems obviously narrow — Lovable still needs the explicit constraint to avoid "helpful" adjacent tidying.

For broader unwanted changes across many pages, see /questions/how-do-i-stop-lovable-changing-things-i-didn-t-ask-it-to-change.