Hiding Battle.net App Friends

[Niketa]

Is there an addon that will hide friends who are only online via the new desktop app? I sincerely HATE this new addition. It doesn't look good at the bottom of the normal online friends and I personally don't want to see people logged onto it because half the time they are actually afk anyway.

I feel like it should be able to be done. For example, the addon Friends Groups can hide and show friends; all this would need to do is check if it's the desktop app and hide those. If there's not currently an addon that does this, what direction would one take to create one (particularly hiding certain friends)?