Relative Date Range

I think it would be helpful to be able to assign filters/automations/etc. using relative dates - I specifically think the following would be useful:

• Relative custom time (X days, weeks, months, years, before and after the creation/start/due/modified date)
• A custom start and end time instead of "7 Days Ahead" and "30 Days Ahead" (combined with relative time, I would be able to create a widget that filters to only show tasks that are between six weeks and seven days away).
• "Next week" and "next month" buttons or a button that has custom parameters including "this ____" and "next ____" and then options for X hours/days/weeks/months/years
• A way to create an automation to auto-assign a due date and start date for tasks/projects