In cooperative planning it is very challenging to establish a shared understanding among the involved partners. If a group of people develops a visual representation in collaboration, they will accept it and adhere to it more strongly. We have experimented for more than five years of using current software applications for the interactive creation of such co-created maps in workshop settings of around 15 people. This tool was customized for the ETH Value Lab to guarantee maximal use of the six screens. The software allows to add background images of the planned area and to include individual elements on different layers. Such elements are: Projects, reference images, texts, sketches, project members, tasks.