This is exactly the kind of problem that I have with Fibery’s views. It isn’t just the list view, but also smart folders, and boards. Fibery can create many to many relationships, but there aren’t very effective ways to visualize it or manage it. This is not a limitation in most other apps.
That is one way to look at it. You can also look at it having two relationships. Fibery seems to have this very strict hierarchical model it wants the users to follow, when in reality things aren’t quite that simple. There are ways to work around this, but it requires a lot of thought and more unique entities.
For example, @jean1 would need to redefine the relationship so that a feature only has one product, then create two features, 2FA associated with CMS and 2FA associated with Mobile App. So, now you have two features named the same thing, but will show up in different places and aren’t really linked together. So, when you search or reference 2FA you end up with both showing up and not knowing which is which. A solution to this is to use a formula to produce the name that says, if you have a product associated with a feature, then add it to the name “2FA (CMS)” and “2FA (Mobile App)”.
I work on a product that has a set of common features across multiple “channels” or “platforms,” and at the moment there isn’t a really good solution I’ve found to managing this problem that doesn’t require a bunch of manual work and complexity.