I don't see where this has been brought up in the last 12 months, but a simple but helpful feature for Gantt charts would be to be able to select columns on the left that would repeat on each page of a multipage Gantt chart regardless of the scale used for the chart. For example a 12 month schedule could be broken into quarters with each page having the same columns on the left like Task Name, Duration, Start Finish, Status, etc. Excel has that feature and most other spreadsheet based programs have it.