I've got two question concerning the GCVs.

1. Can I define a GCV that way, that its subordinates are only shown, if a certain value is NOT selected? i.e. only if NOT "None" is selected?
I know how to show GCVs if a condition is one of two options, but what if I have something like that:

Create homeDir?
Options: None, static, dynamic

And only if NOT 'None' is selected I want to see the subordinates. Subordinates for 'static' and 'dynamic' are the same.

2. Concerning IDM4: I can create new GCV objects and they are shown to me as new tabs beyond Properties->GCVs. I can name these freely by entering a different value into their displayNames.
Can I also change the 'displayName' of the builtIn GCV object or has it always the drivers name set as its displayName?

Kind regards,