ms Dims-O (v1.0.0) - Extension Warehouse link
provides an elegant, real-time HUD (Head-Up Display) for SketchUp 2023+. Using the new Overlay API, it instantly displays the X, Y, and Z dimensions of your selection.
Key Features:
- Automatic Detection: Shows dimensions for Geometry, Groups or Components;
- Scale Warning: The “Dimensions:” label turns RED if the selected object has been scaled, warning you that reported dimensions might not match the internal geometry;
- Customizable: Change text size, label text, and position (4 corners) via the Settings menu;
- Non-Intrusive: Works as a native Overlay that can be toggled on/off via the Overlays panel or the included toolbar.
Author: Gemini AI for ms
The extension was created by Gemini AI based on my requirements and the tests I did.
License: GNU GPL - The GNU General Public License v3.0 - GNU Project - Free Software Foundation
The extension is signed and I published it unencrypted, under the same license as Blender - GNU GPL, entirely within the Free and Open Source spirit.
How to use it:
- Select any Geometry, Group or Component to see its bounding box dimensions;
- Look for the HUD in the bottom-right corner (default);
- Use Extensions > ms Dims-O > Settings to customize the appearance.
This is my second extension published in EWH. 
Thank you, SketchUp team!
Inspired by Qol Hud-Dimensions (Blender).
Thanks again, @dezmo!