Adding Camera Control Movement

I have managed to attach a camera movement to my timeline and have the camera moved up and down, left and right by using the play and reverse option with a onclicked trigger. However, if I wanted to added additional movement (for example, up and up, down to right, ect without using the reverse option, the camera is misplaced due to the original get actor location.

How do I continue the movement of the camera new location without it going to the original location? Hope that make sense.