I don't want to upset you again.
You're willing to draw boxes, but you don't want to draw rooms.
It's a matter of taste. Tastes are not up for debate.
As Keet said, Emmanuel programming and from my personal experiences, even you never use rooms (and you hate it) probably it is the time to start use it and understand what it is and for what is could be used for.
I'm here to help even it looks like criticism.