@MikkelWinther, this is the only app for controlling the Tado Devices from smartthings. that is what it does, it controls the Tado Devices and allows them to be seen in ST as standard ST Thermostats.
If however you want to perform those types of actions when conditions happen from other non tado devices you need to author your own logic in a smartapp, or use a rules engine to achieve this like webCore ([deleted]) or alternatively Smart Rules (http://smartrulesapp.com/) these provide a gui to generate very complex rules.
or you can look at @yvesracine 's ScheduleTstatZones
but i believe that does not do open window detection as it is supposed to work with smart vents. but he also has a smartapp for doing exactly what you wish in its simplest form