Minimum for ALL

I have this sample dataset:

DateIDStep 1Step 2Step 3YearMonth

and the following measures:

Step1_Average = AVERAGE(Requests[Step 1])

Step1_MIN = 
var _SummarizedTable = ADDCOLUMNS(SUMMARIZE(Requests,Requests[YearMonth]),"_X", [Step1_Average])
RETURN MINX(_SummarizedTable,[_X])

Here's the matrix I have:

Reality:

Step1_MIN is supposed to get the MINIMUM from month-level only. It works, because it displays 2.00 when I put it in a spearate visual. But now, how to show the value as repeating, regardless of its row fields? I need it like that because I'm going to use it for a new measure.

I've tried using ALL in the Step1_MIN, but it says it only accepts table reference (not table expression). I've tried using CALCULATE + ALL as a new line Step 1_MIN but it says I could only use columns from the same table.

Expectation: