The limitation for me is in terms of detailed individual project management. It seems to me that Manage It is very near to what I want but c
The limitation for me is in terms of detailed individual project management. It seems to me that Manage It is very near to what I want but could do with expanding to include timelines and the function to set and see deadlines for each task element within a project perhaps illustrated across a calendar. Perhaps a bit like a gantt. This would enable project staff to set and organise their tasks within the context of a project programme each with its own deadlines, must do’s etc which I can view and drill down into-does this make sense?

Although it is not a gnatt chart, we added functionality that will help in this area. You can now add the “effort” of a task. You can also resize tasks on the calendar:
http://blog.getitdoneapp.com/2016/02/new-calendar-improvements-and-task-effort/