Mouse-sync isn't currently available afaik but characters should still follow your main when you move around corners/etc when they are on follow.

You should look into twoboxtoolkit and it's sticky-follow option for having alts refollow main after fights, but I don't use it too much since I just leave them all on follow when I'm outdoors questing, no mob really mean enough to need to split them back and tank out front (though Terrorcantula last night almost made me change my opinion)