This feature can be used on existing devices (Menu → Devices)and during configuration of TapHome Bus modules (Menu → Hardware → TapHome Bus → Module)
Tap and hold first device until its icon changes to icon
Click Select button on right-top of each group
Once you are in selection mode, just tap to select or deselect any device. Also, you can Select all or Deselect all devices from a group using the same right-top button.