If you agree it makes sense and is possible, I would like to suggest 2 enhancements to the RhinoScript methods:
MultiList box to optionally return selected item Indices instead of strings. This is for cases where some of the list entries are identical and it is not possible to tell which specific ones in order were picked
GetObjects / GetObjectsEx - additional argument to specify objects that are pre-selected at the beginning of the object picking process - it would still allow user to pick more, or deselect the pre-selected objects. This is as a mean to manage object sets with adding/removing to selection.
Rhino.ViewTitle (strView]) - ability to Set view title, not only Get