How can I control and create edge loops with the ZModeler Brush ?
What do you mean by “control”? What specifically do you want to do? Move, scale, bevel, etc?
You can insert edge loops with Edge> Insert , you can split loops with Edge >Bevel.
There are functions for doing all sorts of things to edge loops in the Edge actions list. Sometimes, however, it may be easier to manipulate polygroups rather than edge loops to get the result you want.