https://forums.autodesk.com/t5/revit-architecture-forum/centerline-on-dimensions-strings-for-annotation-symbols/m-p/5848351#M328058 No. You would have to nest the annotation symbol in a detail component just as you had predicted. Wed, 07 Oct 2015 00:42:34 GMT ToanDN 2015-10-07T00:42:34Z