I had installed electronic morse controls , with these I installed a wired remote control which has a 5 metre lead. This allows me to stand on the back deck and back the vessel ,and I have full vision and control of the two stern corners of the vessel.
I dock the vessel on my own and it is as easy as docking a dingy. I don't have thrusters just the twins and they are very responsive.
We have a camera but found that a distraction and hard to judge distance.
There is nothing like having proper vision and hand eye coordination to assist in judging wind and current.
Cheers Chris D Liberty