To construct Conversations, at the beggining we have a panel with an initial node. From this one, we can add more nodes selecting the node in which we want to add a child and clicking on one of submenu's option.
Once finalized, we can see how our conversation works clicking on Preview, or only see an selected node clicking on Preview from selected node.
Inicial node: the node where Conversation starts.
Normal dialogue node: node containing a piece of normal conversation.
Final dialogue node: Conversation ends when it reaches one of these nodes.
For each node we have one Dialogue node panel
in which we can add lines to the conversation clicking on 
.
For each line,we chan choose the character (or the player) who is saying the line, and its content.
Option node: This node decide the conversation's route though a set of options that we can add if, with the node selected, we click on Add new option.
For this node type, we have an Option node panel in which we can set the text that will be shown in each option.