hi,

In Mendix Studio Pro, zoom behavior is intentionally limited depending on the page editing mode.

Design Mode

Zoom in/out is not supported in Design Mode.

This is by design. The WYSIWYG (What You See Is What You Get) editor in Design Mode renders the page at a fixed scale to maintain layout consistency and pixel-accurate positioning. For this reason:

• There is no zoom slider available
• Ctrl + mouse scroll does not zoom the page
• Zoom shortcuts are not implemented for Design Mode

This is expected product behavior and not a configuration issue.

Structure Mode

Zoom functionality is available only in Structure Mode.

In Structure Mode, you can:

• Use the zoom slider
• Use zoom controls in the toolbar
• Adjust view scaling to navigate complex layouts

This is the officially supported way to zoom within the page editor.

Why Ctrl + Scroll Does Not Work

Studio Pro captures certain keyboard interactions differently from browser-based tools. The page editor canvas in Design Mode does not implement zoom handlers for Ctrl + scroll, so the input is ignored.

This behavior is consistent across supported Studio Pro versions and is not related to local machine settings.

Recommended Workarounds

If visibility is an issue, the practical alternatives are:

1. Switch to Structure Mode when zooming is required.
2. Adjust Windows display scaling (Settings → Display → Scale).
3. Use a higher-resolution monitor for better canvas clarity.

However, these are environment-level adjustments, not editor features.

Zooming is currently supported only in Structure Mode.

Design Mode does not support zoom functionality, and Ctrl + scroll cannot be enabled for that purpose.

If zoom capability in Design Mode is critical, the appropriate action would be to submit a feature request through the Mendix Ideas Portal.

Andres,

Zoom is not available in Design Mode. Ctrl-Scroll is a zoom shortcut in version 11.

Hope that helps,

Mike