Settingspage from the sidebar menu and make sure you're on the
Enable Project Roadmapso that it's on, and you'll immediately see the Roadmap show up in your sidebar menu
Add Projectbutton at the top right corner, and select from existing projects listed from across the spaces in your organisation.
...button at the top-right to open a pop-up menu listing the projects currently on your Roadmap
Add Projectin the top-right corner
Create Project, then select from the list of existing spaces in your organisation
Add Projectagain and select the new project you just created