Create your first task
To create a new task press on the green plus button as seen in picture 1. You will be asked to enter the data of the task as seen in picture 2. With the new task there are now additional options to create new tasks connected to the first one.
Create a new task connected to the first one
After you have created the first task tap and hold on the new task until the context menu appears (pictures 3 and 4). The context menu offers a lot of options.Choose "Add successor" to create a new task that is connected to the end of the first task. In the gantt view an arrow from the end of the first task to the start of the second task indicates the new connection. The grey shaded area between both tasks is caused by the used calendar.