It would be really useful to be able to add a custom parameter for instances of linked files. For example say
we have two house types linked in, repeated three times each across the site. We might want to add a parameter to state whether each instance of that link is handed or not, rather than having to add this in the instance name, where we may well simply name it by plot number.
It would also be handy to be able to directly schedule (and maybe tag) revit link instances...