You've completely lost me.
Are you trying to make a camera pan up to view an object, then immediately have the camera cut to a new location and do the same panning up motion but on a different subject?
Do this:
Null Master
L Null Rotation
L Camera
Place the Null master in the centre of the object you want to view, say the cube. Keyframe its position and rotation.
Now use whatever combination of the camera and rotation null you like to record the motion (I have all my cameras in a null to make it easy to orbit around products)
Now when you want to replicate your panning animation on a new product; duplicate all the keyframes on the camera and rotation null further down the timeline, and just keyframe the Master null being in the centre of the new product.
The Master is ONLY to be used to moving to a new subject, no other animation.
The rotation null is only for orbiting around a product
All other camera animation goes on the camera
Project attached.
copypastemotion.zip