First, select the two clips between which you want to add a transition.

Choose a Transition: Go to the Effects panel and search for the desired transition effect. Drag and drop it onto the cut between the two clips on the timeline.

Adjust Transition Duration: You can change premiere pro add ons duration of the transition by dragging the edges of the transition effect on the timeline.

Customize Transition: You can often customize transition parameters in the Effect Controls panel, such as direction, duration, and additional options specific to the selected transition.

Preview: To see how the transition looks, use the Program Monitor to play back your video.

Remember that while transitions can enhance your video, it's essential to use them judiciously and in a way that supports the narrative or style of your project. Overusing transitions can make your video appear amateurish, so always consider the context and purpose of each transition in your edit.