You can add a bookmark to a graphical element on the Process Editor canvas and create a link to easily jump back to that spot in the process. You can also add a task, which is similar to a bookmark. To add a task, highlight a graphical element and create a link to easily jump back to it.
A task is not related to the human interactions or people activity task element for a Human Tasks (BPEL for People) activity.
The difference between a task and bookmark is in the intent of the link. A task usually indicates something that needs to be done at that spot as opposed to just an easy link back to it. A task also has a priority to let you easily sort tasks by importance.
To add a task or bookmark to a graphical element, select the element and right-click. Select Add Bookmark or Add Task. Name the task or bookmark.
The following illustration shows a graphical element with a task or bookmark added.