Hello,

I am student, currently completing an internship in a local company.
I just started to use GXT and have some problems with basic tasks.
Currently I'm looking for a way to display grouped lists.
Example:

Basic Units
Gram
KG
Liter
Custom Units
Cup
Barrel
Sheep
...

I spent some time searching the forum/google, but still can't find a proper solution for GXT 3.1.1. I guess there is a fairly easy way to solve this,but I just can't figure it out

Thanks in advance
Alex