Hi Laurence,

To enable a task to move along the time axis set a due date (enables adjustment of the right side - end date) and optionally a time remaining (enables adjustment of the left side - start date).

@ EngSpcOps, thanks for tip on the days remaining. This answers my question about start date that I posed here: http://norada.com/forums/viewthread/842/
and I think a few other people have posed. Great!
more info here as well: http://norada.com/forums/viewthread/334/

Thank you so much for your prompt response.