This task repeats tasks inside the loop until the set conditions are met. You can set the conditions in the task settings.
You can only refer to the process properties in the condition settings.
To add a task inside the loop you need to click on the small node at the top, then on the 'plus' icon
You can place multiple tasks inside the loop.
To add tasks outside the loop you should click on the 'loop' icon at the bottom and click on the 'plus' icon.