A small step for a man, but a giant leap for this tutorial!
You should see something like this now:
The background of Node #1's title has changed to the highlight color. This indicates, that this is the node that is currently allowed to send. The lines representing the connections are also colored in this node's color to show that this node is currently accessing the the channel's medium.
Display of the nodes did not change, because the communication in the static segment has nothing special to display. The numbers show how many complete messages were transmitted in the dynamic segment yet.
There is a position indicator in the communication cycle that shows the current position within the cycle. The scale at the bottom is in Macroticks (MT) and this is also the size of one simulation step.
Slots that are not yet used at this time are drawn as empty dashed boxes. This represtents each node's non-knowledge about the future.
You can see the current counters for communication cycles, MacroTicks and Slots in the status bar. After a few steps it looks like this:
Now step forward the simulation until the dynamic segment is entered.