There's no point in commenting on your idea. While it is a good idea it's not going any further than where it is now.
Why not every idea has a chance, plus it stop idiots spamming door also clan can set cs for applatication at the door. Just a thought that can be useful. But haters going to hate it no matter what happens.
The devs promised that this would be added in 2014 but never was, you might be able to find the post. The date I believe was 31/12/13 or if you're American 12/31/13
They learned it is more profitable to drain our bank accounts on HTE and they have completely abandoned the idea of doing anything with this game past update EE and run money draining events.
Wow I loved reading this, would be nice if this could happen, then I saw it was from 2 years ago, so sad