Sum of Task Durations in Lists or Multi-Select

Add a feature to display the total duration of all tasks within a specific list/column (e.g., "This Week") to help users assess whether their plan is realistic and balanced. This total could be displayed at the top or bottom of the list for easy visibility.

Alternatively, provide an option to multi-select tasks and view the combined duration of the selected tasks. This would offer flexibility for users who want to check the total duration on demand rather than always displaying it in the view. Both options aim to enhance planning efficiency and task management at a glance.