Sometimes we have a small range of subtasks or checklists that need to be applied across many tasks, then never used again. I think the ability to copy and paste these collections would be a much quicker and easier solution than the process we have to follow now:

Add -> Checklist

Templates -> Select template -> click item in list

Click 'Create Checklist'

Navigate to next task

Repeat all steps

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Example suggested process:

Right click on checklist -> select copy checklist

Navigate to next task

Right click on task -> select paste checklist

Repeat last 2 steps