Script to automatically center Roll20 viewport on a token?

In an attempt to create a "viewing user" so that I can have a projector using Roll20 without my intervention, I've got an idea to create or find a script that centers the viewport on a designated user's token. Here's the problem: If I'm DMing in one window, and I've got the projector running the players' view in another window, I have to alt-tab over to the players' window and periodically scroll the view to make sure that the tokens are still visible on the screen. Does such a script already exist, and if not, does this sound like a feasible solution?

There is the sendPing function, but last I saw someone posting a script with it, the function was bugged with regard to what players it moved the view for. I haven't tested it myself.

Wow, that's great -- now if only it wouldn't send a ping each time, and just did the centering. :)

Can't quite figure out what I'm doing wrong, here (target player's token is named "Rolen"): setInterval(function() { var centertoken = findObjs({_pageid: Campaign().get('playerpageid'), _type: "graphic", name: "Rolen"})[0]; sendPing(centertoken.get("left"), centertoken.get("top"), Campaign().get('playerpageid'), null, true); },5000); Should center on that token, yes? I've run it with log statements, and the sandbox seems to output the right values for left and top.

Hmmm...looks like there is a known bug associated with sendPing. ...and in researching that bug, I found that Ctrl-Click does exactly what I need. sigh