Matrix Columns Months by Max year selected

I need show in matrix only months from MAx year selected by slicer

So if in Slicer selected two or more years need to show in matrix only last year , months

now i pput in columns Dat[Month] field and selected in slicer 2020 and 2021, and matrix show me whole 12 months columns, but should show only 1 as 2021 now has only 1 month