You have to do it in your OS, not in InDesign. You have to re-asign types with programs.
On Windows (don't know about Mac), the latest version will always take over the file association, and become the default for indd files. It's impossible to change it.
But there is a plugin for ID that makes this possible. Never tried it myself.
Soxy is a great utility and let's you choose exactly which version you want to open a file.