I have a consumer-facing product and internal product that are tightly linked. These products are grouped within a product line and I often need to display both roadmaps together when reviewing the roadmap with our business stakeholders. The new Starter Roadmap report would be the perfect way to do this if I was able to show multiple products within it.
Bonus points for the ability to display a master release with its child releases and the features within those child releases.
This is possible today. Assuming these are existing products, you can tab to the "Use existing" section and select the Products dropdown to add multiple products to your roadmap.