How to organize best Zephy Scale with multiple projects and a central Testing Team

Hi everyone

We have multiple Products, which are related to each other (SW and HW). Therefore, we have multiple Jira Projects. Every project team has also it's tester who writes Test Cases and is responsible for the Test Automation etc. In order to Tests all the products together, we have a centralized Testing Team, which makes all the System Tests.

What is the best way to organize the Test Management with Zephyr Scale or what possibilities does Zephyr Scale offer for this case?

My idea was

* Make a new Jira Project which contains all the Test Cases from all Jira Projects and link them to the corresponding Jira Projects

* Every Test Plan, Test Cycle will be executed in this Test Project.

* However, there will tests where the System Test Team is not needed. Where should we put this Test Cases (Jira Test Project or the Product Jira Project?

** Is it possible to share or link Test Cases among multiple Jira Projects?

Best

Aleks