[Antenna] Predefined Configurations

[Evan B. R. <ev...@er...>]

I'm using Antenna for a non-ME development project in which we need to
customize our releases for various customer environments.
I'd love to be able to define my own set of "Devices" so that during
development I can quickly move from one set of defines to another.
Editting them manually is rather tedious.
Is the list of predefined Devices editable? I haven't been able to find
how to do this.