To configure the threshold values and apply the template,
- Go to Settings → Configuration → Device templates.
- You can find the HyperV Server and HyperV Virtual Machine templates for the hosts and VMs respectively. Click on the required template.

- Click on Edit Thresholds button to configure the threshold and rearm value for the required monitors.

- Click OK.
- Click Associate for the devices to inherit the configurations in the template. While associating the template, click on Apply & Overwrite for the devices to remove the old and add the new configurations in the template.
Note: To edit the threshold values of a single host, go to its snapshot page, (Navigate to Inventory -> Devices and then click on a device to view its snapshot page) and then click on the Monitors tab. Click on the Edit icon of a monitor to edit its threshold values.
You can also configure adaptive thresholds for CPU utilization, Memory Utilization and Response Time monitors globally across OpManager from Settings -> Monitoring -> Monitor Settings. Learn more about Adaptive Thresholds.