Some Wandora tools are configurable. A configurable tool implements a special interface in Wandora in terms of Java syntax. When a tool is configurable, you can start configuration dialog holding CTRL key down while starting the tool. For example keep CTRL key down and select menu File > Import > OBO Import.... An OBO import configuration dialog opens allowing you to change some OBO import settings. Configuration dialog and settings depend on the tool. Also note that most Wandora tools are not configurable.