You can use variables
move = 0
move = move+10
setCameraMatrix(2565.2, 136.3 +move, 48.8, 2531, 93, 26.8)
It will keep.moving with no stoping
About smoothMoveCamera you have :
smoothMoveCamera(x1,y1,z1,lx1,ly1,lz1,x2,y2,z2,lx2,ly2,lz2, time)
x1,y1,z1,lx1,ly1,lz1 : your camera start position
x2,y2,z2,lx2,ly2,lz2 : your camera end position
means where do you want to stop the moving
and time is how long do you want the moving take by milliseconds