Editing and Adding Slides

Adding And Editing Slides With Copilot

Sometimes you don't need a whole new presentation — you have a finished deck and just want to add one extra slide or improve a few existing ones. Copilot in PowerPoint handles both without touching the rest of the deck.

Adding A Single New Slide

First, decide where the new slide should appear, then select the slide that should come immediately before it. To add a slide at the end of the deck, select the current final slide.

This is a common point of confusion — you don't select where the new slide goes, you select the slide it should follow.

Then open the slide creation interface in one of two ways:

• Click New Slide with Copilot in the Home tab;
• Click the shooting stars icon and choose Add a slide.

Both open the same prompt window.

Writing The Prompt For The New Slide

Describe what the slide should contain. As with all Copilot prompts, being clear about goal, tone, and purpose gets you a better result than a one-word topic.

After you submit, Copilot creates the new slide and leaves the rest of the presentation alone. It usually adds speaker notes too, so you have something to say when you deliver it.

Editing A Single Slide

To improve an existing slide, select it and click the Copilot icon in the top-right of the Home tab to open Copilot chat.

Before typing a prompt, check that Edit with Copilot is enabled — there's a small icon above the input field. If it's not, click the tools icon and turn it on. Without this, Copilot will chat about the slide but won't actually change it.

Once enabled, you can ask for things like:

• Adjust the tone;
• Simplify the language;
• Make the message clearer;
• Change the visual style.

Copilot then redrafts the selected slide based on the prompt. Useful when a slide is technically correct but doesn't match the tone or audience you need.

Editing Multiple Slides At Once

You can apply the same change to several slides in one go. Hold SHIFT while clicking the slides you want in the left-hand slide panel — you can confirm the selection in the outline view.

Then open Copilot chat and describe the change. Copilot only redrafts the selected slides; everything else stays as it is.

This is useful when you want a consistent improvement across many slides — for example, making a whole section feel more engaging, simplifying jargon across five technical slides, or shifting tone across an entire chapter of the deck.