Would smart sockets not be a better option, might look a bit neater than 10 switches on the wall, you could also program a macro in most of the apps to turn them all off at once, and have buttons setup to switch 2 or more on at once.
You used to be able to get one years ago that was like a multiplug and had a main socket that when it sensed power being drawn it would enable the other ones, so you could just turn on the machine and it would enable the accessories on the other sockets. I think it was designed for PCs,I remember getting one free from my energy supplier at the time when they were all about energy savings, even got a huge amount of energy saving bulbs just sent out in the post without asking, before the days of Led bulbs.