This post floats a crazy idea to do what seems impossible: position a viewport title.
While making something that repositions the draw order for all the viewports on a sheet to one's liking the following items come into play in some fashion. I believe they provide good background material for this idea.
The issue of knowing the true viewport position on the sheet in context with coincident viewport overlays:
http://thebuildingcoder.typepad.com/blog/2013/10/exact-viewport-positioning-conceptual-design-automa...
http://thebuildingcoder.typepad.com/blog/2015/10/sheet-to-model-coordinate-conversion.html
One of many posts about how it is not possible to move a viewport title using the API:
http://forums.autodesk.com/t5/revit-api-forum/move-title-of-a-viewport/td-p/5598602
The concept behind repositioning viewport draw order:
http://thebuildingcoder.typepad.com/blog/2016/12/viewport-bring-to-front-and-c-revit-add-in.html
The method used for viewport draw order change, which is basically a viewport recreation, seems to result in the viewport's title to move and reshape according to the new viewport's internal view's view crop. This is an undesirable side affect.
An indirect method to reposition the viewport title seems possible by manipulating the viewport's internal view's view crop into a temporary state prior to a draw order change to affect the desired viewtitle position and length. In other words let the undesirable side affect in the draw order change do the work to position the viewtitle. The final step would reset the viewport's internal view's view crop back to what it is supposed to be. I am wondering if anyone has tried this?
