Tracking Clicked Location as Goal for A4T

Hello

I am using Target on Native Mobile App.

I have a use case where success is clicking the MBOX. If I just use "Target.clickedLocation", I will get a report in Analytics, but I can not marry that with any other analytics variables or events.

So, I decided to use an "event" or "instance of an eVar" as my success goal instead of "Clicked on MBOX". This works as long as only one Activity is live. 

But if I use this same event or instance of an eVar on multiple live activities at the same time then Target reports for various activities gets each others data.

I do not want to use multiple events, is there any solution for this?

Regards