Today, you don't need screen anymore. All you want is just btqueue! However, old style btqueue is still preserved for short-term running. To run it as a daemon in the background, you have to specify daemon command.
$ btqueue.py daemon
After that, you will immediately return to prompt. Now you are ready to control btqueue anywhere by running command below:
$ btqueue.py remote
By default, btqueue.py will bind itself on localhost (127.0.0.1) to make it more secure. However, sometimes you might want to control it from anywhere. In this case, please change global setting xmlrpc_ip to 0.0.0.0 or another more specific ip. As you should already know, there are 2 ways to modify setting; 1) directly modify policy.conf and 2) call gset command in the btqueue's prompt.
>>> gset xmlrpc_ip 0.0.0.0
After modification, restarting is needed.
In remote control mode, you can do whatever you used to do. Note that notifications such as start and terminate are disabled in this mode. Moreover, quiting in this mode will not terminate its daemon. In case of you want to shut down the daemon gracefully, you have to run kill command instead.