You can have new objects created along with control tracks. See Global Options - Objects - Pictures, Video or Live Video.Objects with visual contents allow keyframe control for dynamic positioning and modification of pictures, videos, live video input or texts on the screen. This way "picture-in-picture" effects, camera movements or zoom effects can very simply be implemented. The procedure is always the same. Special information on the individual effects can be found under Visual effects.
This is how you create control tracks for keyframes:
Right-click the object whose picture or video, etc. is to be controlled and select Control tracks.
In the dialog box, you can choose combined control tracks at the top and Individual control tracks with parameter objects at the bottom. Place the checkmarks as desired and close the dialog by clicking on OK.
Further information on editing keyframes can be found in topic Keyframe Editor.
You can have new objects created along with control tracks. See Global Options - Objects - Pictures, Video or Live Video.