Building Overlay Panels with GenerateBlocks

GenerateBlocks Pro 2.3 introduced Overlay Panels — a native way to build popups, mega menus, tooltips, and slide-in panels without extra plugins.

Tutorials

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Kyle Van Deusen

OGAL Web Design owner and WordPress educator helping businesses succeed with design, development, and marketing since 2003.

Filed Under: Tutorials

If you’ve ever wanted to add a popup, a mega menu, or a slide-in panel to your WordPress website — without bolting on another bloated plugin — GenerateBlocks Pro just handed you a much better solution.

With the release of GenerateBlocks Pro 2.3, the team introduced Overlay Panels: a native, block-based system for building all kinds of dynamic, interactive elements directly inside the same editor you already use to build pages. No extra plugin. No separate configuration screen. No mystery code.

Let’s talk about what that actually means for your website.

What Are Overlay Panels, Exactly?

Overlay Panels are interactive elements that appear on top of your page content in response to something — a click, a hover, a scroll position, or even when a visitor is about to leave your site.

The key thing that makes this different from most popup plugins is that Overlay Panels are built with GenerateBlocks itself. That means you design them the same way you design everything else on your site — using the block editor, with real design control, and without the performance overhead that usually comes with dedicated popup plugins.

There are three types:

  • Standard — These float relative to the browser window. Think popups, slide-in panels, and off-canvas navigation.
  • Anchored — These attach to a specific element on the page, like a button or link. Think tooltips, popovers, and custom dropdown menus.
  • Mega Menus — These attach to items in your navigation and create large, rich dropdown menus that can contain images, columns, icons, links — really anything you can build in GenerateBlocks.

You can find the full technical breakdown in the official Overlay Panels documentation, but the rest of this post focuses on what these actually look like in the real world.

What Can You Actually Build With This?

Let me walk through the most practical use cases, since the documentation can make this feel more abstract than it needs to be.

Email Opt-In Popups

The classic. Someone lands on your site, reads for a bit, and a subscription form appears — either after a time delay, after they’ve scrolled halfway down, or when they move their mouse toward the browser’s back button (the “exit intent” trigger).

An example of a popup
An example of a popup

With Overlay Panels, you build that popup using actual GenerateBlocks blocks. You drop in your form, style it however you want, set the trigger, add a backdrop if you want the rest of the page to fade behind it, and you’re done. No separate popup plugin eating into your page speed score.

Mega Menus

This is one of the most impressive things Overlay Panels unlocks. Instead of a plain dropdown list of links in your navigation, you can build an entire layout — columns, images, descriptions, featured items, icons — and attach it to any menu item.

An example of a mega menu
An example of a mega menu

Think of how software companies or large e-commerce sites handle their navigation, with those expansive dropdowns that practically function as their own landing page. That’s now achievable in a standard WordPress site, built with blocks, without a dedicated mega menu plugin.

Slide-In Notification Panels

Want to promote a sale, announce an upcoming event, or highlight a new service without disrupting the whole page? A slide-in panel that appears from the bottom or side of the screen is far less jarring than a full-screen popup.

An example of a slide-in notification
An example of a slide-in notification

You can trigger it after a time delay or after the user scrolls past a certain point.

Tooltips and Popovers

If your content has technical terms, pricing tiers, or anything that benefits from a little extra context, anchored panels make it easy to add a small popup that appears when someone hovers over or clicks a word, icon, or button.

An example of a tooltip
An example of a tooltip

This is particularly useful for service pages, pricing pages, or any content where you want to add nuance without cluttering the main layout.

Off-Canvas Navigation

Mobile navigation menus that slide in from the side are a staple of modern web design, and Overlay Panels handle this natively.

An example of a custom off-canvas navigation
An example of a custom off-canvas navigation

Build a full navigation layout inside the panel — links, social icons, a search bar, a CTA button — and trigger it from a hamburger menu icon.

Features Worth Highlighting

Beyond just giving us the capability to add these overlay panels, there is some important functionality that Generate gave us that make the overlay panels much more powerful and useful in real-world scenarios.

Multiple Trigger Types

This is where things get genuinely useful. Overlay Panels can be triggered by:

  • Click — Someone clicks a button or link you’ve designated
  • Hover — The panel appears when hovering over an element
  • Exit Intent — Fires when the mouse moves toward the top of the browser (signals the visitor is about to leave)
  • Percentage Scrolled — Triggers after the visitor has scrolled X% down the page
  • Time Delay — Appears after a set number of milliseconds
  • Custom Events — Can listen for JavaScript events, such as a WooCommerce add-to-cart action

Each of these alone is a feature you’d typically need a separate plugin to accomplish.

Conditions: Show the Right Panel to the Right People

Tied to Overlay Panels is a new Conditions system that controls when and where a panel appears. You can limit a panel to specific pages, user roles, device types, referral sources, dates and times, URL query parameters, and more.

GenerateBlocks Pro 2.3 introduced Overlay Panels — a native way to build popups, mega menus, tooltips, and slide-in panels without extra plugins.
Create custom conditions

This means you can show a discount popup only to visitors coming from a specific ad campaign (using a URL parameter), or show a logged-in members panel only on your blog posts. These conditions are reusable across multiple panels, so once you’ve defined “mobile visitors who came from Instagram,” you can apply that logic anywhere.

Built-in Animation Controls

Panels can animate in and out — fade, slide from any direction, or scale. You control the duration, which makes it easy to match the feel of your site rather than being stuck with whatever a plugin defaults to.

Pattern Library Support

GenerateBlocks Pro includes pre-built patterns specifically for Overlay Panels — popup layouts, mega menu structures, opt-in forms — so you’re not starting from scratch. You can grab a pattern, swap in your own content, and publish. For most use cases, this alone dramatically reduces the setup time.

The Honest Downsides

This wouldn’t be a fair overview without talking about where Overlay Panels fall short or where you need to set your expectations appropriately.

  • It Requires GenerateBlocks Pro – This isn’t a free feature. Overlay Panels are part of GenerateBlocks Pro, so if you’re not already on that plan, there’s a cost involved. That said, the value is arguably strong — you’re replacing several separate plugins with a single integrated system.
  • The Learning Curve Is Real – This is also one of the reasons having a developer maintain your site — rather than managing it yourself — pays off. On our website care plans, we handle exactly this kind of complexity so it doesn’t fall on you.
  • Mega Menus Require Classic Menus – The mega menu functionality currently requires you to use WordPress’s classic Appearance > Menus system. If you’re building a newer site using the Full Site Editing navigation block exclusively, the attachment process works differently — and the documentation is still catching up to that workflow. Worth being aware of if you’re on a block-theme setup.
  • Performance Is Still Your Responsibility – Yes, Overlay Panels are built with GenerateBlocks’ lightweight framework. But what you put inside those panels still matters. If you load a panel with a heavy form embed, a large image, or poorly optimized content, you’ll still see performance impacts. The tool is light — your implementation might not be. If you’re not sure how your current site is performing, a website audit is a good place to start. We look at performance, technical implementation, and a handful of other factors to give you a clear picture of what’s working and what isn’t.
  • It’s a Newer Feature – GenerateBlocks Pro 2.3 only hit full release in September 2025. That means you’re adopting something relatively new. The patterns are good, the documentation is solid, but you’ll likely encounter edge cases that haven’t been fully addressed yet in community resources. If you’re planning to implement this on a high-traffic client site, testing thoroughly on staging first isn’t optional — it’s necessary.

Who Should Use This?

If you’re already running GenerateBlocks Pro on your site, the question isn’t really whether you should explore Overlay Panels — it’s more a matter of priority. The ability to replace a popup plugin, a mega menu plugin, and a tooltip solution with something native to your existing setup is hard to argue against.

If you’re not yet on GenerateBlocks Pro but you’ve been looking for a reason to upgrade, and your site would benefit from any of the use cases above, this feature is a compelling one.

If you’re just getting started with WordPress and feeling overwhelmed by the building blocks already, hold off. Overlay Panels reward builders who already have a solid handle on GenerateBlocks fundamentals. Get comfortable with the core blocks first.

Final Thoughts

Overlay Panels represent a meaningful step forward for what’s possible in a performance-focused WordPress build. The days of needing a stack of single-purpose plugins — one for popups, one for mega menus, one for tooltips — are genuinely numbered for sites running the GeneratePress/GenerateBlocks stack.

The feature isn’t without its learning curve, and it’s still early enough that you’d be wise to test carefully before deploying on production sites. But the potential it unlocks — custom mega menus, targeted popups, anchored popovers, off-canvas panels, all built natively with blocks — is substantial.

Want to see it in action? Check out the video I did for The Admin Bar exploring a lot of the features we discussed in this article:

YouTube video

This is the kind of feature that, a year from now, people will look back on and wonder how they built sites without it.

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