Can roller shutters with switches be retrofitted for wireless control?

We have radio motors but including external switches that you can basically stick somewhere on the wall. There is also a remote control, with which I can group the individual blinds together.

So I can basically walk up to the window and press the button, set an automatic program (timer), or control the groups via remote control.

It was the most flexible solution for us.

Sounds very good. So you can lower the windows individually with the button or lower them grouped via remote control and possibly program a timer via the remote control. Or is the timer installed separately again? Can you also control the windows individually with the remote control?

The time control is to be programmed in the remote control. I wanted these wireless wall switches because sometimes I just want to lower a roller shutter on site without having to first search for the remote control. The charming thing is that you can stick it somewhere since the switch is also connected to the motor via radio. The disadvantage is that there is no cable to the motor anymore, so if the radio signal acts up... well! Another (small) disadvantage is that at our place a maximum of 8 roller shutters can be paired with one remote control, so I have two. But I can live with that. I also initially thought about retrofitting the whole thing later for cost reasons, but then all the motors would have to be replaced again, etc., which would ultimately be more expensive for me. In terms of price, we had to pay about €270 extra per window. Including all wireless switches and remote controls. The surcharge is calculated on manual roller shutters with straps.

Radio control is unfortunately significantly more expensive for us again, €400 per window (compared to strap / crank)

well if I have the switch next to the window, then I have to walk again... I would be too lazy for that again

As mentioned, with our solution everything can also be controlled via mobile phone, iPad, or through a central system, so you don’t have to walk to the switch (unless you want to, of course).

I also have buttons next to every window. In addition, I am gradually retrofitting my switches (I already have a few) with actuators from "Homematic". Then the possibilities are endless. With that, you can control each roller shutter individually or several or all together via smartphone/tablet/PC/remote control however you like. In addition, many things can be programmed via the Homematic central unit. For example, time-dependent or wind-dependent or sun position-based or based on sunshine/cloudiness. As a little tip, if you want to retrofit something like this, it is advisable to have all sockets and switches installed in a deeper version so that there is space to fiddle the actuators in. My electrician didn't want to charge extra for that.