Homematic IP Access Point Problem

Hello, I hope there is maybe someone here who knows more about Homematic than I do...

In our new building, 3 Homematic roller shutter actuators are used in combination with a 6-button wall switch from Homematic. These devices were paired by the general contractor or their electrician.

I have now bought an access point to manage the stuff more comfortably.

However, (after the access point is connected to the router and lights blue) I cannot pair/read the wireless switch via the mobile app.

After consulting with the electrician, he said I would have to reset the stuff to factory settings so that the components can be integrated into the new access point.

I don’t understand the Homematic manuals. Is it enough to connect the switch that controls the 3 actuators to the access point so that it appears in the mobile app and can be configured, or do I also have to store each individual roller shutter actuator separately?

How did the electrician pair the actuators without an Access Point?
Our BROLL have a small button to start pairing. Then the device code must be entered.

I can't make sense of the Homematic manuals, is it enough now to include the button that controls the 3 actuators in the access point so that it appears in the mobile app and can be configured, or do I have to do this with each individual roller shutter actuator in the memory as well?

Each switch and actuator individually

There is a small button on the actuators for resetting. Then relearn, enter the code on the switch, done. Actually quite simple.

I have managed that by now as well, currently I am struggling to assign the 3 roller shutter actuators with the appropriate button allocation to the 6-gang wall switch.