Table Navigator is a separate page in Jira where users can pull and merge all tables of a specific configuration and then view and interact with them as with if they were one unified table.
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Users can also add custom fields as columns to view alongside table .
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row values. Field columns can be added via a menu in the top left navigation:
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Any user can access the Navigator page via the Apps tab in the top navigation:
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OR
In software or service projects, users can access the navigator page with a Tables button in the project’s sidebar. When a table is opened in this way it will have a pre-filled JQL query - project = {currentproject}
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Users can select one table at a time to view it in the Navigator.
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Each merged table will be displayed according to the individual configuration, i.e. displaying row count or column settings, incl. column sums.
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copy a link to the current table view, incl. applied filters
and access to the configuration page of the current table,
and are available via a (…) menu 
or 
icons next to the table filter icon.
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