---
title: "Manage smart objects"
canonical: "https://help.vicon.com/space/Evoke18/397968596/Manage%20smart%20objects"
format: markdown
---
After you have created a smart object, you can configure it further, as described in the following sections.

> Macro (toc)

## > Macro (anchor)

Change a smart object's origin

The object manipulator enables you to specify a smart object's origin (ie, the center of the physical object in relation to the marker pattern that is tracked by Evoke).

Note that you only need to change the origin of smart objects that you create manually or from custom templates: the built-in smart object templates already have the correct origin set.

1. To activate the object manipulator:
  1. To pause Evoke, click **Enter Review** at the bottom right of the **Workspace**.
  2. Select the smart object.
  3. In the **3D View**, click the object manipulator button.
2. In the Workspace either:
  - Drag the manipulator to move or rotate the smart object to the required location; or
  - Enter the required values in the **Translation** and/or **Rotation** fields.
    :check_mark: **Tip**: To scale the Manipulator, on the numeric keypad, press + (scale up) or - (scale down).

Note that the manipulator operates in local or global space (corresponding to the object coordinate system or the world coordinate system respectively). To switch between the two, click one of the buttons at the right of the **Object Manipulator** heading > Macro (inline-media-image)

.

In the 3D View, you can align a selected object's axes to the global axes, a selected marker, or to the center of multiple selected markers. To do this, select the relevant object(s) or marker(s), activate the Object Manipulator > Macro (inline-media-image)

 and then expand **Alignment Tool** at the bottom. For more information, see [Understand the alignment tool](https://vicon-help.atlassian.net/wiki/spaces/Evoke18/pages/397968792).

> Macro (scroll-pagebreak)

## > Macro (anchor)

Swap clusters

Use the **Swap Clusters** option when you need to replace a device, for example, if you need to change one of your Pulsars because its battery charge is low or if you have created a smart object using one of the supplied templates (OculusRift, etc) and need to link a physical device to its smart object.

1. Ensure the replacement Pulsar is in the volume.
2. If it doesn’t already have a smart object, create one for it (see [Create smart objects](https://vicon-help.atlassian.net/wiki/spaces/Evoke18/pages/397968505)).
3. With the new smart object selected, hold down the Ctrl key and select the smart object for the Pulsar that you want to replace. (Note that selecting the device in the **System** tree also selects the smart object if one is present.)
4. In the **Tracking** panel, do one of the following:
  - For single-slot smart objects: Right-click and select **Swap Cluster**.
  - For composite smart objects (ie, if the second smart object has multiple slots): Right-click, point to **Swap Cluster** and select the device slot that is to be affected by the swap. (The other selected smart object must have a single device slot.)
  The new Pulsar is used by the existing Smart Object or slot.

## Remove selected devices

To avoid listing unwanted devices, you can remove selected missing cluster(s) from the list of devices in the **System** panel.


    **To remove unwanted devices:**


1. In the **System** panel, right-click on the device(s) that you want to remove.
2. Point to **Remove**, and then click **Selected**.