Show count in matrix column headers

[plover]

I have a simple matrix that uses a Date hierarchy for colums - Year Month. 

For the Rows i have account number, and for the values i have Sale Amount.

What i am trying to achieve is if a certain account number in a year/month does > 100k i want to count them, and somehow show them in the Matrix header. Ideally, id like to show year - then Month (Distinct count of accounts > 100k). Is this possible? To have dynamic column headers, based off a measure value?

[amitchandak]

@plover , Try a measure like

ConcatenateX(filter(Summarize(Table,Table[Account Number], Table[Month Year], "_1", [sales amount measure]), [_1] >10000) , Table[Account Number] &" - " & Table[Month Year] , unichar(10) )

[plover]

I couldnt seem to add a measure as a column in a matrix