リファレンス URL：view_object[0…7]

「実数 ( Real ) 」として値取得。

With this variable you can get (or set) the object that has to be kept in the specified view (from 0 to 7) at all times. If there are multiple instances of this object, only one is followed (usually the first one created, but this is not guaranteed). You can also assign a single instance id to this variable, in which case that particular instance is followed. To prevent any view following, you can set this variable using the special keyword noone.

スクリプト・サンプル
if instance_exists(obj_Player)
   {
   view_object[0] = obj_player;
   };