You can now upgrade multiple firewalls from a group of devices in a single action. This action is applicable to a maximum of 15-20 devices at once.
To perform group upgrade of devices
Select Model from the drop-down for Group By.
Select the three dots in the ACTION column for the group of devices you want to upgrade and select Group Upgrade Firmware.
There are 3 steps to perform upgrade. Select the devices in the group by checking the box. Click Next.
Click Upgrade.