Common Request Headers (Header Manager) for All the Requests in a Test Suite?

Hello, 

Is there any way in SoapUI by which I can create a common request header and that will be shared by all the requests in a Test Suite?

In a project (REST API) which I am working on, I need to send "Authorization" for every single request. It is a tadious task, specially when you are working with too many requests in the test suite. 

So is there any way to avoid this? 

Thanks