Odd since they very much should be there at the machine as well as in CWIS, so hopefully yours will allow the change at one of them at least.
As admin go to Machine Status > Tools > Service Settings > Copy Service
Feature Defaults
Then set the defaults and select Save Defaults
But it really should be doable in CWIS
The new machines from Xerox are Connectkey, VersaLink and AltaLink, which do it exactly the same way with exception to some option changes (Services becomes Apps)