I must be missing something relatively obvious, but here is my problem:
In Carbide Express v1.1, I have created a project and specified, at creation-time, that it build with SDK 2.1 and SDK 2.8. Well, I forgot to include SDK 2.6. I have since installed SDK 2.6 and created and successfully built other projects for that target, but I can't figure out how to make SDK 2.6 an available build target for my first project. Is this easy to do? I don't want to start over and manually re-add all my source code files.