# Placing Hangers On Linked MEP Elements

By default, MEP Hangers can place supports only on MEP elements in the active model.
\
However, it is possible to place supports on MEP elements from linked models using the **Enable Linked MEP** toggle in the ribbon.

Here's a quick preview:

{% embed url="<https://arkance.wistia.com/medias/4u11k2o1b9?embedType=iframe_web_component&seo=true&videoWidth=960>" %}

The **Enable Linked MEP** button has two states:

* A grey lightbulb icon with no highlight around the button indicates it is disabled.
* A highlighted button with a yellow lightbulb icon indicates it is enabled.

<figure><img src="https://239424168-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FqtUsszuAWXIZhQhrvjnb%2Fuploads%2FbdohYQRDczqvOsEx2uzS%2Fenable%20linked%20mep.png?alt=media&#x26;token=19a5a102-1c4a-493f-9f20-ba6a922d7523" alt=""><figcaption></figcaption></figure>

To switch between enabled and disabled states, simply click the button.

***

When **Enable Linked MEP** is active, the **Insert**, **Update**, and **Delete** commands can be used with MEP elements from linked models.

To place supports on linked MEP elements:

1. Select a command (**Insert**, **Update**, or **Delete**).
2. You will be prompted to select elements — at this point, **you can only select linked MEP elements** (Pipes, Ducts, Cable Trays, Conduits, MEP Fabrication Pipework, MEP Fabrication Ductwork).
3. Once finished, click **Finish** in the top left of the screen.

<figure><img src="https://239424168-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FqtUsszuAWXIZhQhrvjnb%2Fuploads%2FjnRfmNmw6KpNGCYjwo6v%2Ffinish.png?alt=media&#x26;token=03b9440e-41a5-4904-b67b-c44c489627cc" alt=""><figcaption></figcaption></figure>

4. **Select a configuration and run it**. This will apply the configuration to the selected linked MEP elements and place hangers/supports.

The **same process applies** when running **update** or **delete** operations: select the command first, then select the elements, and click Finish.

{% hint style="info" %}
Even when **Enable Linked MEP** is enabled, it is still possible to work with MEP elements from the active model. To do this, select the elements first, then choose the Insert, Update, or Delete command.
{% endhint %}

***

If your configuration uses a filter for MEP elements (to specify which elements to place supports on — [**read more here**](https://docs.besmart.software/3d-modeling-and-design/configurations/hanger-configurations#mep-element)), the software will retrieve project parameters from linked MEP elements, so you can use those in your filters as well.

When **Enable Linked MEP** is disabled, all commands (**Insert, Update, Delete, Modify**) will work only with MEP elements in the **active model**.