Save to New File...

I got this question from a colleague and thought it appropriate to post my reply herein...

Q
Does anyone know why the "Save to New File..." sometime greys out? It has stumped us.
A
Because this is how Revit is designed… :-(
RCP, Plan, 3D, Section, Elevation views are project specific and based on internal levels or housed in other system/project specific views.

Some, but not all views can be saved as (or transferred to) external project files; the ones not specific to built in system view families can be, as they are either 2D or parametric/informational.

Views with the "Save to New File…" functionality from a Right-Click:
Drafting Views
Keynote Legends
Schedules
Sheets

Here are a few links illustrating the functionality and procedures (an unknowing thanks to the posters of these!!!)...

From Hagerman.com

From RevitZone