Is it possible to update the dates in a duplicated task in the same way that it works for a template? I want to duplicate the timeline and people who have been assigned but don’t want to manually add the timeline. Please help! I would love to add a new due date to a duplicated task and have it all automatically update. We don’t want to have a ton of projects.
Hi @Dom_Maderal, welcome! 
Duplicating a task does not auto-shift dates the way templates and project duplication do. That is why you are not seeing the timeline update when you change the new task’s due date.
What I do instead
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Turn that recurring setup into a task template with relative dates. Then when you create a task from the template and set a due date, the subtask dates adjust based on your offsets. This is the closest to what you want for single-task workflows.
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If it is actually a small set of multiple tasks, a lightweight project template works well. When you create a project from the template you can set a start or due date and all dates shift.
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If you already duplicated a task, quick workaround is to multi-select the subtasks in the task pane and bulk update their due dates to keep the spacing roughly intact.