User story map with multiple projects

From Cloud version 1.3.6-AC and Server/DataCenter 4.0.0 the user story also associates with Jira Agile board and can be used with multiple projects.

You can create Agile board from multiple projects or filters and access User story map from there

Create an Agile board

Choose board type

Create from multiple existing projects or filters

Open Agile board and access User story map from there