So this is what i tried to setup I don’t 100% understand what you mean(I don’t know much about math nodes in UE4 or how to use them)
As you can see I have a third one setup but I wanted to work two out for now.
The camera focus on each block when you switch between them I just wanted it to pan smoothly between them.
Edit
So I continued to work further and got this result.
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It works Kinda it will swap between each camera but not transition between the last location (I tried to store the last location when the timeline is finished to then reuse it)