You can create your own group on Bloomz. It is very easy. Just follow these quick steps. 

1. Tap on All Groups at the Top left corner
2. The left navigation tray opens up. 
3. Click on Add Class/ Group at the top
4. Tap Create a new class or group
5. Click your type of group
6. Then add a name and description and click on Save.
7. The group get created and can be accessed from the left navigation tree.