# Modifying an MPTS
<a name="modifying-an-mpts"></a>

1. On the Conductor Live main menu, choose **MPTS**. 

1. Look for the MPTS you want. If the MPTS is listed twice, it has been set up for [output listening](worker-nodes-other-resiliency.md#es-resiliency-opl). Find the MPTS that is marked as primary, and select it by ID or by name. 

   The **Details** page for the MPTS appear. 

**Modify the properties of the MPTS**

You can change any of the fields on this tab even if the MPTS is running. For information on the fields, see [Creating a standard MPTS](setting-up-mpts-outputs.md). The change takes effect immediately. For example, if you change the transport stream bitrate, the muxer starts using the new value immediately. 

1. Choose the **Configuration ** tab. 

1. Change any fields and choose **Save**. 

**Add or delete channels**

You can add or delete channels, even if the MPTS has been started and is running. 

1. Choose the **Channels** tab.

1. Choose the action:
   + To add a channel, choose **Add a Channel**.
   + To delete a channel, select the **Delete** icon to the right of the channel.

**Change the properties of one or more channels**

You can modify the properties of any channel, even if the MPTS has been started and is running. 

1. Choose the **Channels** tab.

1. Choose **Edit Channels**.

1. Select the tab, then change the fields for one or more channels.

1. Choose **Save**. The changes take effect immediately, on all affected channels in the MPTS.