PBS equivalent of 'top' command: avoid running 'qstat' repeatedly

When I run several jobs on a head node, I like to monitor the progress using the command top. However, when I'm using PBS to run several jobs on a cluster, top will of course not show these jobs, and I have resorted to using 'qstat'. However the qstat command needs to be run repeatedly in order to continue monitoring the jobs. top updates in real-time, which means I can have the terminal window open on the side and glance at it occasionally while doing other work. Is there a way to monitor in real-time (as the top command would do) the jobs on a cluster that I've submitted using the PBS command qsub? I was surprised to see so little, after extensive searching on Google.