Define table cell by cell

Hi Anonymous 

A common practice is to group the original CUSTOMER values into several groups by creating a new group column, and use this group column in a table or matrix visual. Download the attachment for details.

You could use below DAX codes to create a group column. Modify it per your need.

Groups = 
SWITCH (
    'Table'[TYPE],
    "A",
        IF (
            'Table'[CUSTOMER] IN { "1", "2" },
            'Table'[CUSTOMER],
            "Rest of Customer Type A"
        ),
    "B",
        IF (
            'Table'[CUSTOMER] IN { "5", "6", "7" },
            'Table'[CUSTOMER],
            "Rest of Customer Type B"
        )
)

Or you could also right click on CUSTOMER column and select New group. Use grouping and binning in Power BI Desktop - Power BI | Microsoft Docs

Regards,
Community Support Team _ Jing
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