> ## Knowledge Base Index
> Fetch the complete knowledge base index at: https://help.cxplanner.com/sitemap.xml
> Use this file to discover available pages before exploring further.
> Pure-Markdown content can be obtained by appending a '.md' suffix to the content URLs listed in the sitemap (without the trailing slash).

# Combine 3D-models

Combining 3D models in the Files module shows multiple discipline models together in one viewer, either as a temporary quick combination or as a permanent combined folder, which is used for architecture, structure, and installation coordination.

For uploading and viewing a single model, see the 3D upload and view guide.
* Your role must allow selecting converted 3D models. Permanent combine requires project **Admin**.
* You can find the menu at Files module - select the 3D models - right-click - choose **Combine 3D model** or **Save 3D file combination**.
* This opens a combined view. **Save 3D file combination** also creates a folder for later reuse.

|| Permanent combine is only available to users with the project role Admin.

### How to combine 3D models

#### Combine 3D model (quick combination)
1. Select the 3D models you want to combine.
2. Right-click the selected files.
3. Select **Combine 3D model**.
4. Review the models together in the viewer. This combination is not saved.

![How to combine 3D models](https://storage.crisp.chat/users/helpdesk/website/-/e/a/2/c/ea2cfd7bb6130800/image_gne4iu.png)

#### Save 3D file combination (permanent combination)
1. Select the 3D models you want to combine.
2. Right-click the selected files.
3. Select **Save 3D file combination**.
4. Open the new folder CxPlanner creates for the combined model.


![How to combine 3D models - permanent combination](https://storage.crisp.chat/users/helpdesk/website/-/e/a/2/c/ea2cfd7bb6130800/image_zbdrjy.png)


## Results: combined 3D models

| Function | Quick combination | Permanent combination |
| ---- |
| Saved in CxPlanner | No | Yes |
| Can be reopened later | No | Yes |
| Creates a new folder | No | Yes |
| Best suited for | Quick viewing | Permanent coordination |

## Troubleshooting: combine 3D models

| Problem | Cause | Solution |
| ---- |
| Cannot combine models | Files are not selected, or conversion is incomplete | Select the ready 3D models after conversion finishes |
| Permanent combine is not visible | Your project role is below Admin | Ask a project Admin to run Save 3D file combination, or raise your role to Admin |
| Combined model cannot be found later | Quick combination was used | Use right-click Save 3D file combination to create a permanent folder |