---
title: "Add or remove prop markers"
canonical: "https://help.vicon.com/space/ShogunMarkerless121/1253507303/Add%20or%20remove%20prop%20markers"
format: markdown
---
Shogun Markerless enables you to add markers to or remove them from props. This is particularly useful, if, for example, a passive marker falls off a prop or an LED fails and needs to be replaced.

If a marker is removed from a prop, you can manually select and remove the marker from the reconstruction. Similarly, if a marker is added, you can assign it a label and make it part of an existing reconstruction.

> ℹ️ **Remember**  
> ℹ️ A prop must have a minimum of four markers.


    **To manually remove a labeled marker from a prop:**


1. In the **3D View**, select the labeled marker that you want to remove.
2. In the **Tracking** panel, ensure the **Setup** tab is selected.
3. In the **Object** section, go to the **Modify Object** line and click **Remove Marker**.
  The labeled marker is removed from the object.


    **To add an unlabeled marker to a prop:**


1. In the **3D View**, select the required unlabeled marker.
2. At the top of the **Tracking** panel, CTRL+click to select the required prop.
3. In the **Tracking** panel, ensure the **Setup** tab is selected.
4. In the **Object** section, go to the **Modify Object** line and click **Add Marker**.
  The unlabeled marker is added to the selected object.

When you have the right number of markers on your prop, you can then move it into place. For more information on how to do this, see [Move props](https://vicon-help.atlassian.net/wiki/spaces/ShogunMarkerless121/pages/1253507115).