Apply an offset vector to a camera animation clip

Hello.

I have a custom animation clip for a camera movement. The clip starts with a default vector position relative to 0,0,0, but I would like to be able to provide an 'offset vector position' so the camera starts its movement relative to a more specific position.

I'm having a bit of trouble finding the correct set up for that. Any suggestions would be appreciated.

thanks.

 

So nobody knows how to do this?