how do i make the play axis cumulative versus data for just the period?

[kiserr]

I have a scatter chart using some plot areas and showing things that are installed in the project for a specific period of time.  I would like to show this as a cumulative chart.  so, if week 1 had 5 bubble areas (representing installed) and week 2 had 7 bubble areas, when week 2 played, week 1 would remain on the screen.  week 3, would include week 1, week 2 and week 3, ...

[kiserr]

here's a screen shot.  As you can see, the weekending is the data that plays on the play axis.  the bubbles are coordinates for items installed.  

[Greg_Deckler]

@kiserr 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.