I'm not sure if its something that's changed in 2012, but I used to be able to pop dimensions on an isometric view of an

assembly, which was handy when you wanted to show the envelope length, width and height of the assembly.For some

reason now the dimensions won't stay in the view, and completely dissappear when you try and add the next dimension.

Does anyone know a way around this, or if this function has been deleted in version 2012?