need help editing tooltip (title, measure information, column information)

Hello! I have two visualizations where I wanted to modify some information in the tooltips. I know about report tooltip pages, however I am unsure how I can use them to customize information in tooltips in the graphs below.

For the line chart I wanted the graph tooltip to show Year and full month name. I have a full month name column however since the X-axis needs to have 3 letter month, the tooltip defaults to Axis value. Furthermore, I also have a Count Values column, and I was hoping that I can concatenate the Count Values to % Value information.

Next I have a stacked bar percent chart, and here I wanted to say Year, Month for the title of the First row. And similar to the line chart, say the full month name.

I have looked at similar values, however they are a bit unrelated:

https://community.powerbi.com/t5/Desktop/Edit-Tooltip-First-Last-Middle/m-p/297078#M131088

The model/data looks something like this:

data in .csv format:

Count Values,Date,Gender
33,9/27/2014,F
54,10/11/2014,M
45,11/27/2014,F
87,12/15/2014,M
78,12/30/2014,F
12,1/19/2014,M
78,1/21/2014,F
15,1/25/2014,M
63,1/29/2014,M
24,2/6/2014,M
4,1/27/2014,M
56,2/11/2014,M
4,2/27/2014,F
4,2/15/2014,M
25,3/30/2014,F
58,4/27/2014,M
35,5/11/2014,F
78,5/27/2014,M
12,6/15/2014,F
23,6/30/2014,M
23,7/15/2014,F
69,7/30/2014,M
23,7/15/2014,F
23,8/30/2014,F
23,1/19/2014,F
54,1/21/2014,F
23,1/25/2014,F
8,1/29/2014,F
7,2/6/2014,F
98,1/19/2014,F
1,1/21/2014,F
4,1/25/2014,F
9,1/29/2014,F
7,2/6/2014,F
7,1/19/2014,M
7,1/21/2014,M
97,1/25/2014,M
94,1/29/2014,M
1,2/6/2014,M
1,1/19/2014,M
56,1/21/2014,M
1,1/25/2014,M
89,1/29/2014,M
56,2/6/2014,M

Here are all the measures and columns created to make those visuals above:

Created Columns
---------------

ShortMonth = FORMAT(data[Date], "mmm")

MonthNumber = data[Date].[MonthNo]

ShortDay = DAY(data[Date])

ShortYear = YEAR(data[Date])

Month = FORMAT(data[Date], "mmmm", "en-US")


Created Measure
----------------

Sum Value = SUM ( data[Count Values] )

% Value = 
DIVIDE (
    [Sum Value],
    CALCULATE (
        [Sum Value],
        ALLSELECTED (),
        VALUES ( data[ShortYear] ),
        VALUES (  data[ShortMonth] )
    )
)

Created Hiearchy (Custom date for the X axis, Year and 3 Letter Month)
----------------

Date Hiearchy : ShortYear -> ShortMonth

Please let me know if I can clarify anything. Thank you in advance 🙂