Look into this app: “Dim With Me”. It allows you to setup a group of lights which can be turned on and off by pressing the main light on/off.
Also, Great review. I love my V2 hub. All the pros are same for me. The only thing I can tell you which I haven’t tested not for the lack of bravery. I.E. Wife Will send me packing is adding a Siren to the alarm system. V1 Hub was crap. When it set off my Siren, my wife almost killed me. The move to V2, has calmed her down, as now things are working smoothly. Will wait on adding a Siren to the Smart Home Monitoring for a few more month.