New Post: Pre-process BRE and environment bindings based on user selection

I was overthinking the first part of my requirement ...

Depending on the selected environment settings file, generated from SettingsFileGenerator.xml, the pre-processing can replace any ${} values in the required XML

But this needs the user to select the required settings file ...

How can you take the selection of a radio button in the wizard page through to the required environment settings file?