If you want to operate a roller shutter remotely, but your motor is operated with a switch, you can use the Izymo IO shutter receiver.
You can also remove the switch and only operate it via a remote control or app (via the Tahoma Switch).
This is what we assume in this installation step-by-step plan: You want to use your shutter via an app or a remote control and you no longer need the switch.
Here are the installation instructions to connect your wired roller shutter motor to the Somfy Izymo IO shutter module.
But, If you prefer, you can watch the video as well: