Once you have filtered out your tasks in Reply Chrome Extension, you can quickly and easily delete all or several of them using the bulk delete option.
To bulk delete tasks in Chrome Extension:
Open Reply Chrome Extension and go to the Tasks tab.
Filter out the tasks as needed.
Select the bulk select checkbox at the top to select all the displayed tasks. You may deselect some of the checkboxes next to the tasks you would like to keep.
Click the Delete icon.
You are all set! All the selected tasks are now deleted.
Please keep in mind that if you delete a sequence task, the contact related to it will be moved to the following step in the sequence.