Lighting retrofit: Simon 54 delayed and WiFi module for PCZ 521.3

Hello, I am asking for advice on two lighting issues in the house.

1. I have a classic simona 54 single switch in the vestibule for lighting one circuit of two LED bulbs in front of the entrance to the house, I would like to upgrade the operation of this switch so that when I turn on the lighting in front of the door after 30-40 sec the lighting automatically turns off by itself, I was thinking of throwing in a staircase automatic into the box, but I got the information that it may be a problem to fit it behind this simona single switch (I have a regular box there, not the deep one), I am now thinking whether to replace this simona switch with another switch, namely this one:

SIMON 54 Switch with delayed switch-off cream DWC10T.01/41

However, its price is rather exorbitant, are there any other solutions?
I would like to add that the light in front of the door is already integrated in the soffit and I do not have the possibility of changing it without dismantling the metal elements.

2 I have 5 LED luminaires in the soffit - they are connected to the PCZ 521.3 time programmer which lights up according to specific date and time parameters, additionally it is connected between the devices
My question is whether it is possible to add a wifi module to this set so that I can change the settings freely at any time from my phone.
Now, theoretically, there is also such an option, but I have to be near the programmer with NFC activated and change the settings every time by proximity, where the application itself leaves a lot to be desired.

Thank you in advance for your suggestions and advice.

https://www.youtube.com/watch?v=iBae5oxjYWk

kindlar wrote:

https://www.youtube.com/watch?v=iBae5oxjYWk

.

Will such a sonof fit me together with the switch into a standard box ?
I was still thinking today whether to replace the two luminaires I have installed with a version with some kind of built-in movement sensor ?
So that the single switch is always on and the luminaires themselves only light up when someone enters them and switch off automatically.

It does not have to be in the switch box, it can be in the rosette where the wires from the switch come in. https://youtu.be/ycmHfSaL6Xk?t=346
A motion sensor can be fitted in some convenient place, as in the video.