# Simulation
Simulation allows users to add, delete, and edit nodes within a chart. This functionality is available even in read view.
{% hint style="warning" %}
Please note that:
* Since the visual is Microsoft Certified, there is no writeback capability applicable.
* The simulations done in read view will be available only for that particular session and will be lost upon reload. The simulations done in edit view of the report will be saved in the visual tile; if the tile is deleted, the simulation will be deleted.
* However, the simulated data can be exported as shown in [#simulation-section-in-the-toolbar](#simulation-section-in-the-toolbar "mention")
{% endhint %}
### **Enable the Simulation Feature**
1. **Access the Display Section:**
* Navigate to the **Display** section.
* Locate the **Navigation** settings.
2. **Enable the Simulation Toggle:**
* In the **Navigation** settings, you will find the **Simulation Toggle**.
* Turn on the toggle to activate the simulation feature.
3. **Toolbar and Node Menu Updates:**
* Once enabled, the **Simulation** section appears in the toolbar.
* Additionally, the **Formatting** option becomes available in the **Node Menu**.
### **Simulation through Node menu**
1. **Adding a New Node:**
* In the Node Menu click on the **Add New Node** to add a new node.
2. **Editing Nodes:**
* You can edit both newly created nodes and pre-existing nodes.
* Editable Fields: Only the Title and Subtitle of a node can be modified.
3. **Deleting Nodes:**
* Users can delete both newly created nodes and existing nodes.
### **Simulation Section in the Toolbar**
Once the simulation is enabled, a **Simulation** section appears in the toolbar with the following options:
1. **Excel Export:**
* Exports all modifications made to the chart into an Excel file which can be imported into a data source for further processing
2. **Revert Changes:**
* Restores the chart to its original state by undoing all modifications.
The users and readers can effectively utilize the **Simulation** feature to modify and manage nodes within their chart
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