The other day I created a project with (something very similar to, albeit with different titles) this:
- This is a project
- This is a task
- This is another task
And pasting that (with a project selected) on my Mac created a new project. It might not be proper syntax but it worked.
Again, that also comes back to copy & paste - not drag & drop, which is what Martin was referring to.
I dragged it into OF from your post, and it created a nice project with 2 tasks:
So I don’t know what happens on your side, but it should work.
Are you in a position to copy it into Drafts and try a drag from there?
Your test suggests the point of contention is at the source location (Drafts). Next step is probably to determine if this behaviour is just occurring for Martin.
Right. I do wonder how Drafts could get this one wrong. To Drafts it’s just text.
One minor factoid: I’m not defining the draft as Taskpaper - but I don’t think that should matter.
(It might seem strange but some of my Taskpaper lists are pulled from non-Taskpaper drafts. For example my H3 to dash action can cause that.)
Anyhow I’ll try with the latest Drafts beta (a new one being out since I posted) and also from somewhere else into OmniFocus. A busy few days so not quite sure when.
The idea of creating a postprocessor Shortcut is a good one - incorporating what you have here. (Though I could do all I want to in Drafts and dragging seemed simpler.)
I say “postprocessor” as I might want the Shortcut to e.g. tag all the tasks or set some dates.
On iOS, and split screen mode, if I drag from Drafts into any folder it works as expected. Otherwise, he creates a single task with two sub tasks.
For example, if I drag from Drafts into my home folder it creates the project there.
I copied the lines into Drafts, and dragged them into OF, as it was mentioned it did not work from Drafts.
Everywhere I dragged it in OF the project was created as in the screenshot
@Martin_Packer: can you share a screenshot of the result on your machine?
Here is a quick video.
I’m now beginning to understand what you mean. A slight refinement:
If I drag onto Inbox I get 2 subtasks under the 1 task. But the count says 2 not 3. I also don’t recognise the term “subtask” in the OmniFocus interface. (I should read up on them).
So you had a test folder.
Now I do this works - as you described.
But it shouldn’t be necessary to have projects in folders. None of my projects are in folders and I don’t think I’d want them to be. Having said that I’ll experiment with them. 
I think I’ll go over to Omni Group’s Discourse site and suggest this might be a bug or at any rate an unhelpful restriction.
I don’t understand why this would be a bug? Seen from the GTD side all items would start in the inbox, and when I add this to the inbox it creates a project with 2 tasks. Or 1 task with two subtasks, whatever you want to call it. From there you can then either add it to a folder, or just keep it as a project somewhere else. There’s no need for folders anywhere.
Or am I missing your point?
@loupage got it working by dragging to a folder. That’s the only way I’ve managed to make it work right. If that’s the design I don’t like it.