Once it’s time to start crossing things off your checklist, there are a few different ways to mark items as complete. For a single task, you can just check the box as you would expect — but if you have finished all the tasks underneath a header or in the entire checklist (go, you!), tools are available to check them all at once.
Checking a single item
Click on the checkbox next to an item in the checklist.
Checking all items underneath a header
Click the menu button on the right side of a header.
Click Check all.
If you later need to uncheck all the items in that section, return to the menu and click Uncheck all.
Checking all items in a checklist
Click the menu button in the checklist header.
Click Check all items.
If you later need to uncheck all the items in the checklist, return to the menu and click Uncheck all items.