Create Dashboard for indices of different servers with different prefix

I have two indices, one for zipkin and one for logstash. And there is common field in both i.e. traceId.
I want to create a Kibana dashboard where I can collect different fields from both indices together(using common field; traceId) and provide concentric view.
I tried going with the filter option on dashboard but I could find only one client's _index, either zipkin or logstash. Not both at same time.
How to achieve this?

Hi and welcome to our community

Which kind of Visualizations should your dashboard provide?

Thx & best,
Matthias