Let’s say you have a project Organize Garage, and that one of the task items is Clean Out Workbench.
Then you decide that you want to create several subtasks for Clean Out Workbench: Install Wall-mounted Tool Rack, Organize Nuts and Bolts, etc.
If you assign a Due Date to Clean Out Workbench, all the subtasks are listed out for a given day. Is there some setting in OmniFocus that will only display Clean Out Workbench on the day in which it is due, but then have all the subtasks collapsed under it, to keep that day’s tasks looking clean?