When OmniGroup first added Taskpaper support to OmniFocus they published an Editorial workflow which allows you to create new project - in the Mac Power Users Facebook Group someone asked if you could specify which folder the project should go into, a few minimal tweaks later and here is the solution! The key changes were:
- Ask the user which folder they want to save the project in.
- URL encode the folder name.
- Modify the X-Callback URL so the project would be saved to the specified folder.