Everything Evangela said, especially her last two points is true. Hitting up and down causes all sorts of weirdness if you're not in the correct layer and you're toggling through friend/party/all. This is less true with the latest update providing an alternative for targeting. Then the issue of the action bar disappearing. I get Nabiri wanting it to go away to keep more of the screen open. But this is another issue that should have been toggable from the very beginning making everyone happy.

People like on/off switches. Think ahead SE.