The ability to copy a view in a drawing, keeping all the drawing view properties the same.
I frequently have to create multiple partial section views of a large assembly. All the views are oriented exactly the same, the only difference is that they each reference a different cross section, and sometimes a different origin and spline for the partial views.
Current workaround is that you have to add a general view or projected view, orient it properly. Change its properties to partial view, apply, do the whole ref point & spline thing, apply, change the scale, apply, set the cross section, apply...etc.
A huge time saver would be if you could just make an exact copy of the view, and then you only have to ref a different cross section, and/or ref point for the partial view, and you are done.