# Highlight
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A detailed explanation of controls and interface functions are described in the section [State Machine Builder User Interface](https://docs.google.com/document/d/1-o5qSv4zTkzj7YSmRTkV4zezFq7lwU00FyTy0kw1l1U/edit#bookmark=id.6vu41emx3478).
1. Within the edit Simulation section of the HyperSkill Desktop application, navigate to the State Machine tab.
2. Click on the desired state and from the dropdown in either the entry or exit actions select the type Highlight.
3. Press the + button to add the state to the action list.
4. Select the entity you wish to highlight from the  dropdown. This will be populated with every VO and VP in your space.
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