Problem with mixing screen name and page path

Hello,

I have four sources from analytic (desktop, mobile, iphone app and android app) that I have selected in a connection with Supermetrics Analytic connector in Google Data Studio. 

I want to find the total amount of page views for frontpage for the four sources:

- Desktop and mobile holdes the data in the attribute "pageview" from the path "page path"

- Iphone and Android holds the data in the attribute "screen view" from the path "screen name"

I have made regex to get the right dir. (see picture 2 og 3)

When I aggregate (see picture 1) the attributes "pageview" and "screen view" then it does not include "screen view" (see picture 4).

I just don't understand how to fix it. Can anyone help?

Martin