In response to your point however, this is something we have considered, however for simplicity of the interface, and the user experience for most of our users, we opted to keep stories grouped by Themes only, and stories cannot be attached to other stories (epics).  When a story is too big (an epic), we recommend splitting the story anyway into smaller stories, thus negating the need for epics.

I do understand the need for this, however no one other than you is asking for it, so until we have sufficient demand justifying the added complexity, unfortunately I am going to have to say we're going to park this suggestion.

Thanks for the suggestion, and if anyone else feels this is a needed feature, please say so we are aware of it.

Thanks,

Matt