When programming in Revit, it is possible to select an element in a linked file, however, it isn't highlighted. It would be really handy to have this option, which makes it much easier to make tools that work with linked files.
Let say I am making a tool that does something with windows. It would be a huge help to show the user where in the building this certain window resides. When it is in the main model, you can select the element and highlight it, but not when the element is in a linked file.