One interesting use of Stacked Walls is to define an interior partition that has a gypsum wall Board (GWB) finish that rises to a fixed elevation while the metal stud structure carries on up until it reaches the underside of decking or some structure.
The first step is to create the two walls you need if they aren't already available. Most templates at least have the interior partition wall type. You may just need to create another version that has no gwb layers. Here is the stacked wall settings for the images above.
Note in my previous post the Top Extension Distance technique could be used with a single wall if the stud layer was "unlocked" instead of the finish layer. This way the stud layer could be extended to the structure and leave the finish at a preset height.