This OverNode allows the implementation of for-loops.
This is a Flow Node, in which the flow is divided into two branches, represented by two output flow ports.
The Count parameter is used to define how many iterations this Node should execute its Body. Inside the body resides all the logic of the loop, described as a collection of joined Nodes.
In order to keep track of the progression of the loop, Current Step keeps track of the current step of the loop.
Once the loop has finished its computation, the main branch (upper right port) is resumed.
