Can I define a group of products to be controlled together?

Personal product grouping cannot be created in the app.
If you wish to control all products in a room of the same type, you select the room screen and the group option below the sensor values. Changing the slider position now controls all products of that type. To obtain individual control, select the Device option.

Alternatively, you can control all products of one type from the indoor climate sensor in the room. These groups are always windows, shutters, or blinds.