creating a new week column when adding new Data

Anonymous Having some issues following exactly what is going on here. However, if you had a column that lists the values for P8W3 values for example you should be able to simply put that column in the Columns field well for your Matrix visualize and as new values appear in that table they will be added to the matrix visual automatically. So, you *may* have to unpivot some columns in your dataset. Again, it's really hard to understand without knowing what the data is.

Sorry, having trouble following, can you post sample data as text and expected output?
Not really enough information to go on, please first check if your issue is a common issue listed here: https://community.powerbi.com/t5/Community-Blog/Before-You-Post-Read-This/ba-p/1116882

Also, please see this post regarding How to Get Your Question Answered Quickly: https://community.powerbi.com/t5/Community-Blog/How-to-Get-Your-Question-Answered-Quickly/ba-p/38490

The most important parts are:
1. Sample data as text, use the table tool in the editing bar
2. Expected output from sample data
3. Explanation in words of how to get from 1. to 2.