How to add a new column to the right of a matrix?

[ovonel]

I have a matrix, with Weeks as columns, it works fine: 

Now I want to add a new column... but of course, I can't add it... because it just takes the first value, how can I add at the end of the Weeks a new column with 'current project'? 

Current Project should appear to the right of it here:

[v-yueyunzh-msft · Accepted solution]

Hi , @ovonel 

According to your description, you want to "add a new column to the right of a matrix".

For your need  , you need to create a new table as a dimension table used for the column headers.

We can create it in Power Query Editor, you can create a blank query in Power Query Editor.

This is my test data:

We can put this M code in the "Advanced Editor":

let
    Source = List.Sort( List.Distinct(Table[Week])) & {"Current project"},
    #"Converted to Table" = Table.FromList(Source, Splitter.SplitByNothing(), null, null, ExtraValues.Error),
    #"Added Index" = Table.AddIndexColumn(#"Converted to Table", "Index", 1, 1, Int64.Type)
in
    #"Added Index"

We do not need to create any relationship between two tables.

Then we can create a measure like this:

Measure = var _column = MAX('Query1'[Column1])
var _v= CALCULATE( SUM('Table'[Staffing]) , TREATAS({IFERROR(VALUE(_column),BLANK())} , 'Table'[Week]))
return
IF(_column = "Current project" , "Your need data" , _v)

Then we can put the fields on the visual and we can get the result as follows:

Thank you for your time and sharing, and thank you for your support and understanding of PowerBI! 

Best Regards,

Aniya Zhang

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