Help and Gantt Chart suggestions (#2771)

I am currently testing Software Ideas Modeler and I would appreciate it if there were something like an F1 help function or a help menu. I have tried my hand at a Gantt chart and would like to be able to plan using hours as well as days or weeks, for example. It would also be nice if the tasks could be structured more clearly into main tasks and sub-tasks. Otherwise, I think the tool is great and hope that my suggestions are enough to get me a discount. I would be delighted :-)