ITSM Device list provides a hierarchical structure to filter devices based on company and groups, but it becomes complex for a company which has a large number of endpoints. To make this simpler a new global search bar is introduced in ITSM which helps us to search devices easily and quickly.
Please refer the below link for detailed explanation and screenshots.
https://wiki.comodo.com/frontend/web/topic/how-to-search-the-devices-using-global-search-bar
Thank you