Here's the section on switch-case structures from the AngelCode documentation.
http://www.angelcode.com/angelscript/sdk...ts.html#if
As far as I know AngelCode doesn't support case identifiers beyond integers. For example, I'm pretty sure you can't use case 'j' like you could in native C++.
Note that you will want to end each case code block with a break; -- unless you want to continue through the rest of the cases. You can exclude the break; statement if you wanted to make a cascading code block which adds extra code based on which value is input, but that's a little more semantically advanced than would normally be needed for something like an Amnesia custom story.