---
title: Apply a Parameterized Template
slug: edgemanager/lem-user-ui/product-features/templates/apply-a-parameterized-template
description: You can apply a parameterized template to one or more edge devices from an open project Templates pane.
docTags: 
createdAt: 2022-09-28T20:53:09.000Z
---

You can apply a parameterized template to one or more edge devices from an open project *Templates*** **pane.

When applying a parameterized template, you can apply it to a group of edge devices by clicking the group to show only the edge devices in the selected group.'

Review the guide to [Apply a Parameterized Template During Activation](docId\:EPSYMUsWZ9uHWcMWMnyaX). 

# Additional Details

- While applying a parameterized template to an edge device, you can set values for the variables that affect edge devices.
- The template variables are changed using the JSON-path and the variable values, and then sent to the edge device using the existing API.

# Step 1: Apply a Parameterized Template

**To apply a parameterized template: **

1. Log in to Litmus Edge Manager.
2. Select a company.
   The *Projects* pane appears.
3. From the Navigation panel, select **Templates**.
   The *Templates* pane appears.
4. Click the **Actions** icon next to a parameterized template and select **Apply Template**.
   The *Apply Template: Select Edge Devices to Appl*y dialog box appears.
5. Select one or more check boxes next to edge devices, and then click **Apply**.
   The *Set Variables* dialog box appears.
6. From the **Set Variables **dialog box, enter the variable value in the variable field.
   **Example**: Enter `PLC1` in the **device\_name** field.
7. Click **Apply**.

   The template is applied to the selected edge devices.

# Step 2 : Verifying Template Parameters are Applied to an Edge Device

There are many types of possible variables. The following verification procedure is an example.

**To verify template parameters are applied to an edge device: **

1. From another browser tab, log in to Litmus Edge.
2. From the Navigation panel, select **DeviceHub**.
   The Edge Devices pane appears.
3. Select the device for which the template was applied and ensure that the variables entered in the *Set Variables* dialog box appear correctly.

:::hint{type="info"}
**Example**: If `device_name` is a variable, make sure that the name for the device is correct. In this case, `PLC1`.
:::