Hi thomas,
First of all I would like to thank you for your response but i want create nodes with different properties in same graph, I do not want simple changing a properties. What the tool allows to do is to create properties for all nodes of the graph(EDIT -> MANAGE CUSTOM PROPERTIES) and what I would like would to create specific properties for some nodes types and has a pallete of different custom node types, its possible ?
For example: Create a node that represents a house and another node represents a car. These nodes have different properties and I want to create them.