What happened to Drag & Drop a generated Stepfile

Since the latest update the Drag&Drop function for Step-files seems to have disappeared. Now I fist have to save a generated Stepfile first before I can drag to another application.
Please re-install this feature as it was before and like it is when generating f.i. PDF files.

Thanks for you contributions in advance.

Bart, licensed user since 8 sep 2016, working on iPad Pro.