Mass update sub-items in under multiple items all at once

Thanks Dani. I’m actually trying to update individual sub-items under several different items. So using the titles in your screenshot, I have Test Item A with subtasks 1, 2, and 3. Then I have Test Item B with the same sub tasks, 1, 2, 3 and so on. After creating everything I found out I need to change subtask 2 for all test items. It doesn’t seem like I can select sub items under multiple Test Items. I can only do as you did and select subtask under one test item at a time. So I ended up having to individually update subtask 2 within each test item.