I have been using the program for years now, and have been in touch in the past. Just a quick suggestion: I noticed that in the new version completed tasks fall automatically into a hidden separate list at the bottom of the day. I know this feature was specifically requested by another user four-five years ago, but, here are my two cents:
WP has a strong graphical layout. if you use it as a planner to time-block your day, rather than as a task manager, it is actually rather helpful to 'see' how the various time-slots have panned out at the end of the day, those you managed to 'cross' and those you did not. To remove the complete ones from sight makes it impossible for you to appreciate the outline of the day as originally planned, and make the necessary corrections.
My suggestion is: implement an option in the preferences, so that those who use WP as a planner can keep the crossed-through tasks in their original place, and those who use it as a task manager can have them removed from sight at the bottom.
That's it. Hope you find it useful!
Customer support service by UserEcho