[yucca]

I would refrain from burdening other tasks in the project with unnecessary start/due dates. Only actual deliverables (or milestones) need due dates in the scenario you mention, Jose. This significantly reduces the effort associated with managing project time line slippage. I even use this approach when using Microsoft Project. Unless there is a reason to suspend work, I never want to impede (or defer) progress just because some deliverable dates have been moved back.

IMO, formal project management is largely outside the scope of personal productivity software like OF. Not that it wouldn't be nifty if you could do as you suggest . . .