total from multiple real time tiles

Hi, I have a push (historic) data stream from Kepware to PowerBI with product counters values from several machines. Every 10 seconds i push the new payload with updated product counters.

Dashboard consists of real time tiles (one tile per machine) which display product counters in real time.

How can I have a tile with TOTAL product counter from ALL machines in real time? 

Say Counter1 is 100 at 6h00m00s, then 120 at 6:00:10, then 140 at 6:01:20, etc

Say Counter1 is 200 at 6h00m00s, then 220 at 6:00:10, then 240 at 6:01:20, etc

Then I want TOTAL tile to display 300 at 6h00m00s, then 340 at 6:00:10, then 380 at 6:01:20, etc

I tried various visuals in the report, but couldn't get the right result...

Thanks!