changing Default Settings for Spatial Reference

[DominicRobergeIADOT]

It would be nice to be able to set the Default Spatial Reference to what ever an Organization use as a Default. Currently, each time a user is trying to plot points from a spreadsheet, the default Spatial Reference is 4326- GCS WGS 1984. Most Office users don't know the info needed to plot those points. We are mainly using State Plane Coord  (3417), so it would be nice to be able to set this info as the Default Spatial Reference for our Org (or at the user level). Even with a cheat-sheet... most of our users forget to change the Spatial Reference value and they get unexpected results.

Thanks!