The Timeline features a switchable magnetizer that makes it easier to adjust in and out times between interactive elements and video clips. This feature affects both displacements and in/out time adjustments.
When the magnetizer is on, while moving an element along the Timeline it will get attracted by in and out points of the different video clips in the Timeline. When adjusting the in and out times of an element, dragging its beginning or its end and getting close to an in or out point of a video clip will also generate this magnet effect.
You can activate and deactivate this feature anytime by clicking on the Magnetize button next to the Timeline controllers.