Managing multiple tasks at once
dypt makes it simple to manage multiple tasks at once. Whether you want to move tasks, change their status, set priorities, add deadlines, manage blockers, copy tasks, archive them or delete them, you can do it from multiple selection mode.
Multiple selection mode
The first step is to enable multiple selection mode. To do this, click the "Multiple selection" button in the subtasks header, next to the task details button. You can also press "Shift + m" to toggle multiple selection mode.
To start from a particular task, open its menu and choose Select, or press "v" when the task is selected with the keyboard. Multiple selection mode starts with that task already selected.
If you change several tasks in the same list one at a time (deleting, moving or archiving them, or setting priorities, deadlines or tags), dypt suggests multiple selection mode once. The suggestion points at the multiple selection button, which you can use straight away, and links to the bulk editing guide if you want a walkthrough.

You'll see that the subtasks now have additional orange checkboxes next to them on the right and that a control panel has appeared at the top of the subtasks.
Selecting subtasks
When multiple selection mode is active, all the usual ways of selecting a subtask become inactive. For example, whilst you can still see the status checkboxes on the left of a task for reference, clicking on them will not change the status of the task.
Select all the subtasks that you would like to update by checking the orange checkbox on the right, or by pressing "Space" when a subtask is selected with the keyboard.

To select several tasks in a row, check one task's orange checkbox, then hold Shift and check another: every task between them is selected too, including the subtasks of any expanded task. With the keyboard, hold Shift and press ↑/↓ (or j/k) to extend the selection one task at a time, starting from the task you're on. Going back the way you came undoes each step, including the task you started from.
Ranges work in reverse too. Shift-click a task that is already selected to deselect every task between it and the last one you checked. With the keyboard, if the first task you move onto is already selected, holding Shift deselects tasks as you go.
Alternatively, you can press the "all" or "none" buttons in the multi mode control panel to select all or none of the subtasks to speed up the selection process.
Performing an action on multiple subtasks
Now that you have made your selection of subtasks, you will see that the action buttons in the multi mode control panel have become active. Click on one of the actions to apply that action to all of the selected subtasks.

Available actions include setting status, priority, deadline, time, dependencies, moving, copying, archiving and deleting. AI time estimates are also available for selected tasks if you have AI actions remaining.
Some bulk actions open a dialog so you can choose exactly how the action should apply. For example, bulk deadlines let you pick a shared deadline for the selected tasks, and dependency actions let you add or remove blockers.
After the action is complete, multiple selection mode will be disabled, and you should be able to see the results of your action.
When adding or removing blockers for several tasks, select up to 100 tasks at a time. Split larger selections into smaller groups.
For archive, unarchive, delete, move and copies that keep you on the current page, the confirmation message offers Undo. See Undoing a task action.
Disabling multiple selection mode
If you change your mind, you can disable multiple selection mode at any time by clicking the "Multiple selection" button again in the subtasks header. You can also press "Shift + m" to toggle multiple selection mode.