Well, expanding the current settings will get you something similar.
Next to include the bleed area to the created PDF, it would be a great idea to add media settings as well. Currently you can apply (custom) bleed. This is awesome and I can't wait for it to be actually visible on your document, but it would be great to also being able to define media dimensions, like for instance 10 mm that also can be activated when creating the PDF.
That way, when creating a A4 leaflet, 210 x 297 mm, you apply 3 mm bleed, and 10 mm media. When exporting to PDF you end up with a PDF file with a media(box) of 230 x 317 mm, a bleed box of 216 x 303 mm and a trim box of 210 x 297 mm.