1. On the leaf block, click the cog icon.
2. Click the Progress link on the left hand menu.
3. From this screen you can view the overview and history of this block, and update its progress.
use the + button to increase the Current Progress percentage to 100%, or
type 100 in the text field.
4. Enter a comment that describes the completion, and then click Update. The block now displays as completed, and the progress rolls up to the block(s) above.