Ability to link Features to Goals and Initiatives from a different Product within the same Product Line Merged

Ability to link Features to Goals and Initiatives from a different Product within the same Product Line.

We have multiple projects which are delivered in a matrix manner. Which means we have Teams aligned to Products which actually complete work from a different product. As such we'd like to link our features to goals/initiatives from another product.

I understand that we could have the in initiatives up one level in the product line, however this doesn't really suit us from a Strategy visibility perspective.