100c Entry box "Settings" how to turn it on for employees?

We have just switched to 100c.  I, as administrator, can change to the new ribbon, themes, etc.  When my employees try to use the "settings" at log in, it says:  You do not have permission.  Where is the security to turn this on?  I have tried searching for it but nope, can't find it.[:@]

Thanks in advance,

Tracy