Boost Your BIM has been posting some awesome stuff. One older post shows you how to quickly purge your Revit model of Imports:
a FilteredElementCollector, a bit of LINQ, a transaction, and Document.Delete to get the imports (but not the links) out of the model.
Check out the code at:
Delete Imported DWGs and Other CAD files � Boost Your BIM – making Revit even better
If you want to learn how to set-up and use macros in Revit, check out:
Setting up your Revit project for inputting macro codes – Benjamin Malone
His detailed post covers:
- Revit Macro Manager
- Module creation and choosing a language
- SharpDevelop
- Building and running the macro
