TYPO3 Core

After a quick slack talk with Patrick Broens, it is apprently not possible right now to add a custom post processor to the wizard dropdown. However, you can manually add the class name into the form TS and it will properly evaluate the post processor.

I can think of a few cases where it would be quite handy to have this feature. I just wanted to use the forms ext to let the user build forms that are integrated in an extension's logical workflow. Unfortunately, the missing possibility of a clean registration kills that feature for me from a usability's perspective.