To create a group tap 'Group' on the top left corner in 'Lamps' tab. Then select the lamps for the group. When you have selected all lamps you want tap on the folder icon on top right corner. You can rename the group by double tapping the group icon. You can also tap ‘Edit’ on top of the screen in ‘Lamps’ tab. In the edit mode drag and drop a lamp control on top of another lamp control. 

It is possible to add more lamps to the group by dragging and dropping them on top of the group in edit mode or selecting the lamp in group screen and then double tapping the group you want to add the lamp to. 

You can control the lamps in the group together with normal gestures. If you would like to control the lamps individually double tap on the group and a screen will open where you can control your lamps individually.