Meraki's does not support displaying the "Notes" field in the table view.
You can use Tags Instead of Notes. Tags can be viewed in the table and used for filtering, so if you're just recording something simple like an inventory number, this might be a viable option.
https://documentation.meraki.com/General_Administration/Organizations_and_Networks/Organization_Menu...
I am not a Cisco Meraki employee. My suggestions are based on documentation of Meraki best practices and day-to-day experience.
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