I'd like to know to link two tasks (I mean, for a newbie user like me, to see the arrow between 2 of them), but not with the current options. For example, first task starts and finishes, and the next task starts some days before the previous one finishes. But this second one needs the first to have started, and not necessarily finished.
You can see an example of what i want in the attached image.
Any help please?