API Workflow parameter:
Example with other types:
You actually can, if you manipulate the editor hard enough and ‘force’ API types to be included. It’s basically soft-disabled, likely due to performance concerns.
But if you break the editor and set the parameter correctly with some trickery, it actually works, exactly how you’d expect 
Be very careful with /write because you can brick your editor without being able to restore it from the UI
No problem. It’s good to be careful
Is that the call that Buildprint makes to apply the changes correctly?
if you want this feature turned on, upvote on the ideaboard