How to hide Performance from toolbar by default (not remove it)

[Mike Hallan]

Hi, 
I've just migrated an application from NB8.2 to NB12.3. 
Is there a way to hide the Performance/Profile item from the toolbar by default?
I know I can remove it by deleting the Performance item in XML 
Layer-Toolbars-Performance but I don't want to remove it. I just want it hidden 
from view when the user first starts the application but leave the ability for 
the user to later enable it from the application's View-Toolbars-performance 
menu item.
Thanks!