Adding transitions
There are many types of transitions in the Library. For every type, you choose a specific preset effect by using the thumbnails. For example, you can choose from popular transition styles such as Dissolve, Crossfade, and Fade to black.
To add a transition• In the Edit workspace, do one of the following:
• In the Library, click the Transition category button 
and select a transition category. Scroll through the transitions in the Library. Select and drag a transition thumbnail between two video clips in the Timeline. Drop your transition and it will snap into place. You can only drag and drop one transition at a time.
and select a transition category. Scroll through the transitions in the Library. Select and drag a transition thumbnail between two video clips in the Timeline. Drop your transition and it will snap into place. You can only drag and drop one transition at a time. • Double-click a transition thumbnail in the Library to automatically insert it into the first empty transition slot between two clips. Repeat this process to insert a transition at the next cut. To replace a transition in your project, drag the new transition onto the transition thumbnail for replacement in the Storyboard View or Timeline View.
• Overlap two clips in the Timeline.
To add a transition automatically1 Select Settings > Preferences > and click the Edit tab.
2 Under Transition Effect, enable Automatically add transition effect
The default transition is added automatically between clips.
Note: A default transition is always added automatically between overlapping clips, whether the Automatically add transition effect in Preferences is enabled or not.
To add a selected transition to all video track clips1 Select the thumbnail of the transition.
2 Click the Apply current effect to video track button 
or right-click on the transition and select Apply current effect to video track.
or right-click on the transition and select Apply current effect to video track. To add random transitions to all video track clips• Click the Apply random effect(s) to video track button 
.
. To customize a preset transition1 Double-click a transition effect in the Timeline.
2 Modify the attributes or behavior of the transition on the Transition page in the Options Panel.
To further customize transitions, you may also do one of the following:
• In Default transition effect duration, enter a value for the number of seconds you want transitions to take place in between clips.
• Choose a transition effect from the Default transition effect drop-list.
• In Random effects, click the Customize button and select transitions you want to use in your project when transitions are added in between clips.