Shelly dimmer 2 with Fan

Dear all,

At my toilet I have 2 LED lights and a fan for mechanical ventilation. Preferably I only want to dim 1 light, so I connected 1 light to the shelly dimmer 2 and the other LED light and the fan are connected directly to the switching wire (see attachment).

When I power it I am possible to control the light via the shelly app on my phone, but the physical switch does not work? Moreover, I also saw that the light which is controlled by the dimmer 2 is flickering. Is there any solution to this such that one light is connected to the dimmer 2 and the other light and fan are connected directly to the switching wire such that I am able to control 1 light via the shelly app, and also that the physical switch is able to turn on/off both lights and the fan?

Yes I know this is a possible solution, it is not possible to have them all together on 1 physical switch, s.t. only 1 light is controlled by the shelly dimmer 2?